Version 1.66b (will revisit how to change IMGUI_VERSION_NUM across versions, this commit reduces the numerical IMGUI_VERSION_NUM compared to the commit on Nov 22).

The warning is "implicit conversion of NULL constant to 'unsigned int' [-Wnull-conversion]". Happens when ImTextureID is not a void*, but unsigned int, for example.

.github/CONTRIBUTING.md

@@ -18,7 +18,7 @@ You may use the Issue Tracker to submit bug reports, feature requests or suggest
 **Guidelines to report an issue or ask a question:**
 - Please provide your imgui version number.
 - Please state if you have made substantial modifications to your copy of imgui. 
-- Try to be explicit with your expectations and what you have tried. What you have in mind or in your code is not obvious to other people.
+- Try to be explicit with your Goals, your Expectations and what you have Tried. What you have in mind or in your code is not obvious to other people. People frequently discuss problems without first mentioning their goal.
 - If you are discussing an assert or a crash, please provide a debugger callstack. Never state "it crashes" without additional information. If you don't know how to use a debugger and retrieve a callstack, learning about it will be useful.
 - Please make sure that your compilation settings have asserts enabled. Calls to IM_ASSERT() are scattered in the code to help catch common issues. By default IM_ASSERT() calls the standard assert() function. To verify that your asserts are enabled, add the line `IM_ASSERT(false);` in your main() function. Your application should display an error message and abort. If your application report an error, it means that your asserts are disabled. Please make sure they are enabled.
 - When discussing issues related to rendering or inputs, please state the OS/back-end/renderer you are using. Please state if you are using a vanilla copy of the example back-ends (imgui_impl_XXX files), or a modified one, or if you built your own.
@@ -27,10 +27,10 @@ You may use the Issue Tracker to submit bug reports, feature requests or suggest
 - When requesting a new feature, please describe the usage context (how you intend to use it, why you need it, etc.).
 
 **Some unfortunate words of warning**
-- If you are or were involved in cheating schemes (e.g. DLL injection) for competitive online multi-player games, please don't post here. We won't answer and you will be blocked. We've had too many of you. Please stop.
+- If you are or were involved in cheating schemes (e.g. DLL injection) for competitive online multi-player games, please don't post here. We won't answer and you will be blocked. We've had too many of you.
 - Due to frequent abuse of this service from aforementioned users, if your GitHub account is anonymous and was created five minutes ago please understand that your post will receive more scrutiny and incomplete questions may be dismissed.
 
-If you have been using dear imgui for a while or have been using C/C++ for several years or have demonstrated good behavior here, it is ok to not fullfill every item to the letter. Those are guidelines and experienced users or members of the community will know what information are useful in a given context.
+If you have been using dear imgui for a while or have been using C/C++ for several years or have demonstrated good behavior here, it is ok to not fullfill every item to the letter. Those are guidelines and experienced users or members of the community will know which information are useful in a given context.
 
 ## How to create an Pull Request
 - When adding a feature, please describe the usage context (how you intend to use it, why you need it, etc.).

.github/issue_template.md

@@ -1,30 +1,36 @@
-IF YOU ARE HAVING AN ISSUE COMPILING/LINKING/RUNNING/DISPLAYING/ADDING FONTS/WIRING INPUTS, please post on the "Getting Started" Discourse forum:
+(Click "Preview" to turn any http URL into a clickable link)
+
+1. IF YOU ARE HAVING AN ISSUE COMPILING/LINKING/RUNNING/DISPLAYING/ADDING FONTS/WIRING INPUTS, please post on the "Getting Started" Discourse forum:
 https://discourse.dearimgui.org/c/getting-started
 
-Otherwise, you may use this Issue Tracker to ask for help and submit bug reports, feature requests or suggestions. PLEASE CAREFULLY READ THIS DOCUMENT before submitting any issue:
-https://github.com/ocornut/imgui/blob/master/.github/CONTRIBUTING.md
-(Click "Preview" to turn the URL above into a clickable link)
+2. You may use this Issue Tracker to ask for help and submit bug reports, feature requests or suggestions that don't fit in any category of (1). PLEASE CAREFULLY READ THE CONTRIBUTING DOCUMENT before submitting any issue: https://github.com/ocornut/imgui/blob/master/.github/CONTRIBUTING.md
 
-PLEASE MAKE SURE that you have: read the FAQ in imgui.cpp; explored the contents of ShowDemoWindow() including the Examples menu; searched among Issues; used your IDE to search for keywords in all sources and text files; and read the CONTRIBUTING.md file linked above.
+3. PLEASE MAKE SURE that you have: read the FAQ in imgui.cpp; explored the contents of ShowDemoWindow() including the Examples menu; searched among Issues; used your IDE to search for keywords in all sources and text files; and read the CONTRIBUTING.md file linked above.
 
-(Delete everything above this section before submitting your issue.)
+4. Delete points 1-4 and PLEASE FILL THE TEMPLATE BELOW before submitting your issue. 
 
 ----
 
+_(you may also go to Demo>About Window, and click "Config/Build Information" to obtain a bunch of detailed information that you can paste here)_
+
 **Version/Branch of Dear ImGui:**
 
-XXX
+Version: XXX
+Branch: XXX _(master/viewport/docking/etc.)_
 
-**Back-end file/Renderer/OS:** _(or specify if you are using a custom engine back-end)_
+**Back-end/Renderer/Compiler/OS** 
 
-Back-ends: imgui_impl_XXX.cpp + imgui_impl_XXX.cpp
-OS: XXX 
+Back-ends: imgui_impl_XXX.cpp + imgui_impl_XXX.cpp _(or specify if using a custom engine/back-end)_
 Compiler: XXX _(if the question is related to building)_
+Operating System: XXX 
 
 **My Issue/Question:** _(please provide context)_
 
+XXX
+
 **Standalone, minimal, complete and verifiable example:** _(see CONTRIBUTING.md)_
 ```
+// Please do not forget this!
 ImGui::Begin("Example Bug");
 MoreCodeToExplainMyIssue();
 ImGui::End();

.github/pull_request_template.md

@@ -1,8 +1,8 @@
 - Please read https://github.com/ocornut/imgui/blob/master/.github/CONTRIBUTING.md
 - When adding a feature, please describe the usage context (how you intend to use it, why you need it, etc.).
-- When fixing a warning or compilation problem, please post the compiler log and specify the version and OS you are using.
-- Try to attach screenshots to clarify the context and demonstrate the feature at a glance.
-- Make sure your code follows the coding style already used in imgui (4 spaces instead of tabs, "type* name", "local_variable", "FunctionName", "MemberName", etc.). We don't use modern C++ idioms and can compile without C++11.
+- When adding a feature, try to attach screenshots/gifs to clarify the context and demonstrate the feature at a glance.
+- When fixing a warning or compilation problem, post the compiler log and specify the version and OS you are using.
+- Make sure your code follows the coding style already used in the codebase (4 spaces identation, no tabs, `type* name`, `local_variable`, `FunctionName()`, `MemberName`, `// Text Comment`, `//CodeComment()`, etc.). We don't use modern C++ idioms, we don't use C++ style cast, we don't use C++ headers, and we can compile without a C++11 compatible compiler.
 - Make sure you create a branch for the pull request. In Git, 1 PR is associated to 1 branch. If you keep pushing to the same branch after you submitted the PR, your new commits will appear in the PR.
 
 (Clear this form before submitting your PR)

docs/CHANGELOG.txt

@@ -29,6 +29,82 @@ HOW TO UPDATE?
 - Please report any issue!
 
 
+-----------------------------------------------------------------------
+ VERSION 1.66b (Released 2018-12-01)
+-----------------------------------------------------------------------
+
+Other Changes:
+
+- Fixed a text rendering/clipping bug introduced in 1.66 (on 2018-10-12, commit ede3a3b9) that affect single ImDrawList::AddText()
+  calls with single strings larger than 10k. Text/TextUnformatted() calls were not affected, but e.g. InputText() was. [@pdoane]
+- When the focused window become inactive don't restore focus to a window with the ImGuiWindowFlags_NoInputs flag. (#2213) [@zzzyap]
+- Separator: Fixed Separator() outputting an extraneous empty line when captured into clipboard/text/file. 
+- Demo: Added ShowAboutWindow() call, previously was only accessible from the demo window.
+- Demo: ShowAboutWindow() now display various Build/Config Information (compiler, os, etc.) that can easily be copied into bug reports.
+- Fixed build issue with osxcross and macOS. (#2218) [@dos1]
+- Examples: Setting up 'io.BackendPlatformName'/'io.BackendRendererName' fields to the current back-end can be displayed in the About window.
+- Examples: SDL: changed the signature of ImGui_ImplSDL2_ProcessEvent() to use a const SDL_Event*. (#2187)
+
+
+-----------------------------------------------------------------------
+ VERSION 1.66 (Released 2018-11-22)
+-----------------------------------------------------------------------
+
+Breaking Changes:
+
+- Renamed SetScrollHere() to SetScrollHereY(). Kept redirection function (will obsolete).
+- Renamed misc/stl/imgui_stl.* to misc/cpp/imgui_stdlib.* in prevision for other C++ helper files. (#2035, #2096)
+
+Other Changes:
+
+- Fixed calling SetNextWindowSize()/SetWindowSize() with non-integer values leading to 
+  accidental alteration of window position. We now round the provided size. (#2067)
+- Fixed calling DestroyContext() always saving .ini data with the current context instead
+  of the supplied context pointer. (#2066)
+- Nav, Focus: Fixed ImGuiWindowFlags_NoBringToFrontOnFocus windows not being restoring focus
+  properly after the main menu bar or last focused window is deactivated.
+- Nav: Fixed an assert in certain circumstance (mostly when using popups) when mouse positions stop being valid. (#2168)
+- Nav: Fixed explicit directional input not re-highlighting current nav item if there is a single item in the window
+  and highlight has been previously disabled by the mouse. (#787)
+- DragFloat: Fixed a situation where dragging with value rounding enabled or with a power curve 
+  erroneously wrapped the value to one of the min/max edge. (#2024, #708, #320, #2075).
+- DragFloat: Disabled using power curve when one edge is FLT_MAX (broken in 1.61). (#2024)
+- DragFloat: Disabled setting a default drag speed when one edge is FLT_MAX. (#2024)
+- SliderAngle: Added optional format argument to alter precision or localize the string. (#2150) [@podsvirov]
+- Window: Resizing from edges (with io.ConfigResizeWindowsFromEdges Beta flag) extends the hit region
+  of root floating windows outside the window, making it easier to resize windows. Resize grips are also
+  extended accordingly so there are no discontinuity when hovering between borders and corners. (#1495, #822)
+- Window: Added ImGuiWindowFlags_NoBackground flag to avoid rendering window background. This is mostly to allow
+  the creation of new flag combinations, as we could already use SetNextWindowBgAlpha(0.0f). (#1660) [@biojppm, @ocornut]
+- Window: Added ImGuiWindowFlags_NoDecoration helper flag which is essentially NoTitleBar+NoResize+NoScrollbar+NoCollapse.
+- Window: Added ImGuiWindowFlags_NoMouseInputs which is basically the old ImGuiWindowFlags_NoInputs (essentially
+  we have renamed ImGuiWindowFlags_NoInputs to ImGuiWindowFlags_NoMouseInputs). Made the new ImGuiWindowFlags_NoInputs
+  encompass both NoMouseInputs+NoNav, which is consistent with its description. (#1660, #787)
+- Window, Inputs: Fixed resizing from edges when io.MousePos is not pixel-rounded by rounding mouse position input. (#2110)
+- BeginChild(): Fixed BeginChild(const char*, ...) variation erroneously not applying the ID stack
+  to the provided string to uniquely identify the child window. This was undoing an intentional change
+  introduced in 1.50 and broken in 1.60. (#1698, #894, #713).
+- TextUnformatted(): Fixed a case where large-text path would read bytes past the text_end marker depending
+  on the position of new lines in the buffer (it wasn't affecting the output but still not the right thing to do!) 
+- ListBox(): Fixed frame sizing when items_count==1 unnecessarily showing a scrollbar. (#2173) [@luk1337, @ocornut]  
+- ListBox(): Tweaked frame sizing so list boxes will look more consistent when FramePadding is far from ItemSpacing. 
+- RenderText(): Some optimization for very large text buffers, useful for non-optimized builds.
+- BeginMenu(): Fixed menu popup horizontal offset being off the item in the menu bar when WindowPadding=0.0f.
+- ArrowButton(): Fixed arrow shape being horizontally misaligned by (FramePadding.y-FramePadding.x) if they are different.
+- Demo: Split the contents of ShowDemoWindow() into smaller functions as it appears to speed up link time with VS. (#2152)
+- Drag and Drop: Added GetDragDropPayload() to peek directly into the payload (if any) from anywhere. (#143)
+- ImGuiTextBuffer: Avoid heap allocation when empty.
+- ImDrawList: Fixed AddConvexPolyFilled() undefined behavior when passing points_count smaller than 3,
+  in particular, points_count==0 could lead to a memory stomp if the draw list was previously empty.
+- Examples: DirectX10, DirectX11: Removed seemingly unnecessary calls to invalidate and recreate device objects
+  in the WM_SIZE handler. (#2088) [@ice1000]
+- Examples: GLFW: User previously installed GLFW callbacks are now saved and chain-called by the default callbacks. (#1759)
+- Examples: OpenGL3: Added support for GL 4.5's glClipControl(GL_UPPER_LEFT). (#2186)
+- Examples: OpenGL3+GLFW: Fixed error condition when using the GLAD loader. (#2157) [@blackball]
+- Examples: OpenGL3+GLFW/SDL: Made main.cpp compile with IMGUI_IMPL_OPENGL_LOADER_CUSTOM (may be missing init). (#2178) [@doug-moen]
+- Examples: SDL2+Vulkan: Fixed application shutdown which could deadlock on Linux + Xorg. (#2181) [@eRabbit0]
+
+
 -----------------------------------------------------------------------
  VERSION 1.65 (Released 2018-09-06)
 -----------------------------------------------------------------------
@@ -50,7 +126,7 @@ Other Changes:
   Although it is not perfect and will keep being improved, it is fairly functional and used by many. (#787)
 - Fixed a build issue with non-Cygwin GCC under Windows.
 - Demo: Added a "Configuration" block to make io.ConfigFlags/io.BackendFlags more prominent.
-- Examples: OpenGL3: Fixed error condition when using the GLAD loader. (#2059, #2002). [@jiri]
+- Examples: OpenGL3+SDL2: Fixed error condition when using the GLAD loader. (#2059, #2002) [@jiri]
 
 
 -----------------------------------------------------------------------
@@ -123,6 +199,7 @@ Other Changes:
 - Selectable: Added ImGuiSelectableFlags_Disabled flag in the public API. (#211)
 - ColorEdit4: Fixed a bug when text input or drag and drop leading to unsaturated HSV values would erroneously alter the resulting color. (#2050)
 - Misc: Added optional misc/stl/imgui_stl.h wrapper to use with STL types (e.g. InputText with std::string). (#2006, #1443, #1008)
+  [*EDIT* renamed to misc/std/imgui_stdlib.h in 1.66]
 - Misc: Added IMGUI_VERSION_NUM for easy compile-time testing. (#2025)
 - Misc: Added ImGuiMouseCursor_Hand cursor enum + corresponding software cursor. (#1913, 1914) [@aiekick, @ocornut] 
 - Misc: Tweaked software mouse cursor offset to match the offset of the corresponding Windows 10 cursors.
@@ -194,7 +271,7 @@ Other Changes:
   - Some frameworks (such as the Allegro, Marmalade) handle both the "platform" and "rendering" part, and your custom engine may as well.
   - Read examples/README.txt for details.
 - Added IsItemDeactivated() to query if the last item was active previously and isn't anymore. Useful for Undo/Redo patterns. (#820, #956, #1875)
-- Added IsItemDeactivatedAfterChange() [*EDIT* renamed to IsItemDeactivatedAfterEdit() in 1.63) if the last item was active previously, 
+- Added IsItemDeactivatedAfterChange() [*EDIT* renamed to IsItemDeactivatedAfterEdit() in 1.63] if the last item was active previously, 
   is not anymore, and during its active state modified a value. Note that you may still get false positive (e.g. drag value and while 
   holding return on the same value). (#820, #956, #1875)
 - Nav: Added support for PageUp/PageDown (explorer-style: first aim at bottom/top most item, when scroll a page worth of contents). (#787)
@@ -314,6 +391,9 @@ Breaking Changes:
 - Removed ImGuiCol_CloseButton, ImGuiCol_CloseButtonActive, ImGuiCol_CloseButtonHovered style colors as the closing cross uses regular button colors now.
 - Renamed ImGuiSizeConstraintCallback to ImGuiSizeCallback, ImGuiSizeConstraintCallbackData to ImGuiSizeCallbackData.
 - Removed CalcItemRectClosestPoint() which was weird and not really used by anyone except demo code. If you need it should be easy to replicate on your side (you can find the code in 1.53).
+- [EDITED] Window: BeginChild() with an explicit name doesn't include the hash within the internal window name. (#1698)
+  This change was erroneously introduced, undoing the change done for #894, #713, and not documented properly in the original 
+  1.60 release Changelog. It was fixed on 2018-09-28 (1.66) and I wrote this paragraph the same day.
 
 Other Changes:
 
@@ -522,7 +602,6 @@ Other Changes:
 - Window: Using the ImGuiWindowFlags_NoScrollWithMouse flag on a child window forwards the mouse wheel event to the parent window, unless either ImGuiWindowFlags_NoInputs or ImGuiWindowFlags_NoScrollbar are also set. (#1380, #1502)
 - Window: Active Modal window always set the WantCaptureKeyboard flag. (#744)
 - Window: Moving window doesn't use accumulating MouseDelta so straying out of imgui boundaries keeps moved imgui window at the same cursor-relative position.
-- Window: BeginChild() which an explicit name doesn't include the hash within the internal window name. (#1698)
 - IsWindowFocused(): Added ImGuiFocusedFlags_ChildWindows flag to include child windows in the focused test. (#1382).
 - IsWindowFocused(): Added ImGuiFocusedFlags_RootWindow flag to start focused test from the root (top-most) window. Obsolete IsRootWindowFocused(). (#1382)
 - IsWindowHovered(): Added ImGuiHoveredFlags_ChildWindows flag to include child windows in the hovered test. (#1382).

docs/README.md

@@ -3,7 +3,7 @@ dear imgui,
 [![Build Status](https://travis-ci.org/ocornut/imgui.svg?branch=master)](https://travis-ci.org/ocornut/imgui)
 [![Coverity Status](https://scan.coverity.com/projects/4720/badge.svg)](https://scan.coverity.com/projects/4720)
 
-_(This library is free but needs your support to sustain its development. There are many desirable features and maintenance ahead. If you are an individual using dear imgui, please consider donating via Patreon or PayPal. If your company is using dear imgui, please consider financial support (e.g. sponsoring a few weeks/months of development. I can invoice for technical support, custom development etc. Email: omarcornut at gmail)._
+_(This library is free but needs your support to sustain its development. There are many desirable features and maintenance ahead. If you are an individual using dear imgui, please consider donating via Patreon or PayPal. If your company is using dear imgui, please consider financial support (e.g. sponsoring a few weeks/months of development). I can invoice for technical support, custom development etc. Email: omarcornut at gmail)._
 
 Monthly donations via Patreon:
 <br>[![Patreon](https://cloud.githubusercontent.com/assets/8225057/5990484/70413560-a9ab-11e4-8942-1a63607c0b00.png)](http://www.patreon.com/imgui)
@@ -17,6 +17,8 @@ Dear ImGui is designed to enable fast iterations and to empower programmers to c
 
 Dear ImGui is particularly suited to integration in games engine (for tooling), real-time 3D applications, fullscreen applications, embedded applications, or any applications on consoles platforms where operating system features are non-standard. 
 
+See [Software using dear imgui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui), [Quotes](https://github.com/ocornut/imgui/wiki/Quotes) and [Gallery](https://github.com/ocornut/imgui/issues/1902) pages to get an idea of its use cases.
+
 Dear ImGui is self-contained within a few files that you can easily copy and compile into your application/engine:
 - imgui.cpp
 - imgui.h
@@ -25,9 +27,9 @@ Dear ImGui is self-contained within a few files that you can easily copy and com
 - imgui_widgets.cpp
 - imgui_internal.h
 - imconfig.h (empty by default, user-editable)
-- stb_rect_pack.h
-- stb_textedit.h
-- stb_truetype.h
+- imstb_rectpack.h
+- imstb_textedit.h
+- imstb_truetype.h
 
 No specific build process is required. You can add the .cpp files to your project or #include them from an existing file.
 
@@ -85,9 +87,9 @@ Result:
 
 ### How it works
 
-Check out the References section if you want to understand the core principles behind the IMGUI paradigm. An IMGUI tries to minimize state duplication, state synchronization and state storage from the user's point of view. It is less error prone (less code and less bugs) than traditional retained-mode interfaces, and lends itself to create dynamic user interfaces. 
+Check out the References section if you want to understand the core principles behind the IMGUI paradigm. An IMGUI tries to minimize superfluous state duplication, state synchronization and state retention from the user's point of view. It is less error prone (less code and less bugs) than traditional retained-mode interfaces, and lends itself to create dynamic user interfaces. 
 
-Dear ImGui outputs vertex buffers and command lists that you can easily render in your application. The number of draw calls and state changes is typically very small. Because it doesn't know or touch graphics state directly, you can call ImGui commands anywhere in your code (e.g. in the middle of a running algorithm, or in the middle of your own rendering process). Refer to the sample applications in the examples/ folder for instructions on how to integrate dear imgui with your existing codebase. 
+Dear ImGui outputs vertex buffers and command lists that you can easily render in your application. The number of draw calls and state changes required to render them is fairly small. Because Dear ImGui doesn't know or touch graphics state directly, you can call its functions  anywhere in your code (e.g. in the middle of a running algorithm, or in the middle of your own rendering process). Refer to the sample applications in the examples/ folder for instructions on how to integrate dear imgui with your existing codebase. 
 
 _A common misunderstanding is to mistake immediate mode gui for immediate mode rendering, which usually implies hammering your driver/GPU with a bunch of inefficient draw calls and state changes as the gui functions are called. This is NOT what Dear ImGui does. Dear ImGui outputs vertex buffers and a small list of draw calls batches. It never touches your GPU directly. The draw call batches are decently optimal and you can render them later, in your app or even remotely._
 
@@ -97,27 +99,27 @@ Demo Binaries
 -------------
 
 You should be able to build the examples from sources (tested on Windows/Mac/Linux). If you don't, let me know! If you want to have a quick look at some Dear ImGui features, you can download Windows binaries of the demo app here:
-- [imgui-demo-binaries-20180512.zip](http://www.miracleworld.net/imgui/binaries/imgui-demo-binaries-20180512.zip) (Windows binaries, Dear ImGui 1.61 WIP built 2018/05/12, 5 executables)
+- [imgui-demo-binaries-20181008.zip](http://www.miracleworld.net/imgui/binaries/imgui-demo-binaries-20181008.zip) (Windows binaries, Dear ImGui 1.66 WIP built 2018/10/08, master branch, 5 executables)
 
-The demo applications are unfortunately not yet DPI aware so expect some blurriness on a 4K screen. For DPI awareness you can load/reload your font at different scale, and scale your Style with `style.ScaleAllSizes()`.
+The demo applications are unfortunately not yet DPI aware so expect some blurriness on a 4K screen. For DPI awareness in your application, you can load/reload your font at different scale, and scale your Style with `style.ScaleAllSizes()`.
 
 Bindings
 --------
 
-Integrating Dear ImGui within your custom engine is a matter of 1) wiring mouse/keyboard/gamepad inputs 2) uploading one texture to your GPU/render engine 3) providing a render function that can bind textures and render textured triangles. The [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder is populated with applications doing just that. If you are an experienced programmer and at ease with those concepts, it should take you less than an hour to integrate Dear ImGui in your custom engine, but make sure to spend time reading the FAQ, the comments and other documentation!
+Integrating Dear ImGui within your custom engine is a matter of 1) wiring mouse/keyboard/gamepad inputs 2) uploading one texture to your GPU/render engine 3) providing a render function that can bind textures and render textured triangles. The [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder is populated with applications doing just that. If you are an experienced programmer at ease with those concepts, it should take you about an hour to integrate Dear ImGui in your custom engine. Make sure to spend time reading the FAQ, the comments and other documentation!
 
 _NB: those third-party bindings may be more or less maintained, more or less close to the original API (as people who create language bindings sometimes haven't used the C++ API themselves.. for the good reason that they aren't C++ users). Dear ImGui was designed with C++ in mind and some of the subtleties may be lost in translation with other languages. If your language supports it, I would suggest replicating the function overloading and default parameters used in the original, else the API may be harder to use. In doubt, please check the original C++ version first!_
 
 Languages: (third-party bindings)
-- C: [cimgui](https://github.com/Extrawurst/cimgui) or [sonoro1234's cimgui](https://github.com/sonoro1234/cimgui) (more recent update), also see [#1879](https://github.com/ocornut/imgui/issues/1879)
+- C: [cimgui](https://github.com/cimgui/cimgui) (2018: now auto-generated! you can use its json output to generate bindings for other languages)
 - C#/.Net: [ImGui.NET](https://github.com/mellinoe/ImGui.NET)
 - ChaiScript: [imgui-chaiscript](https://github.com/JuJuBoSc/imgui-chaiscript)
 - D: [DerelictImgui](https://github.com/Extrawurst/DerelictImgui)
-- Go: [go-imgui](https://github.com/Armored-Dragon/go-imgui)
+- Go: [imgui-go](https://github.com/inkyblackness/imgui-go) or [go-imgui](https://github.com/Armored-Dragon/go-imgui)
 - Haxe/hxcpp: [linc_imgui](https://github.com/Aidan63/linc_imgui)
 - Java: [jimgui](https://github.com/ice1000/jimgui)
 - JavaScript: [imgui-js](https://github.com/flyover/imgui-js)
-- Lua: [imgui_lua_bindings](https://github.com/patrickriordan/imgui_lua_bindings) or [lua-ffi-bindings](https://github.com/thenumbernine/lua-ffi-bindings)
+- Lua: [LuaJIT-ImGui](https://github.com/sonoro1234/LuaJIT-ImGui), [imgui_lua_bindings](https://github.com/patrickriordan/imgui_lua_bindings) or [lua-ffi-bindings](https://github.com/thenumbernine/lua-ffi-bindings)
 - Odin: [odin-dear_imgui](https://github.com/ThisDrunkDane/odin-dear_imgui)
 - Pascal: [imgui-pas](https://github.com/dpethes/imgui-pas)
 - PureBasic: [pb-cimgui](https://github.com/hippyau/pb-cimgui)
@@ -126,20 +128,20 @@ Languages: (third-party bindings)
 - Swift [swift-imgui](https://github.com/mnmly/Swift-imgui)
 
 Frameworks:
-- Renderers: DirectX 9, DirectX 10, DirectX 11, DirectX 12, Metal, OpenGL2, OpenGL3+/ES2/ES3, Vulkan: [examples/](https://github.com/ocornut/imgui/tree/master/examples)
+- Renderers: DirectX 9/10/11/12, Metal, OpenGL2, OpenGL3+/ES2/ES3, Vulkan: [examples/](https://github.com/ocornut/imgui/tree/master/examples)
 - Platform: GLFW, SDL, Win32, OSX, Freeglut: [examples/](https://github.com/ocornut/imgui/tree/master/examples)
 - Framework: Allegro 5, Marmalade: [examples/](https://github.com/ocornut/imgui/tree/master/examples)
 - Unmerged PR: SDL2 + OpenGLES + Emscripten: [#336](https://github.com/ocornut/imgui/pull/336)
 - Unmerged PR: Android: [#421](https://github.com/ocornut/imgui/pull/421)
-- Unmerged PR: ORX: [#1843](https://github.com/ocornut/imgui/pull/1843)
 - Cinder: [Cinder-ImGui](https://github.com/simongeilfus/Cinder-ImGui)
-- Cocos2d-x: [imguix](https://github.com/c0i/imguix), [issue #551](https://github.com/ocornut/imgui/issues/551)
+- Cocos2d-x: [imguix](https://github.com/c0i/imguix), [#551](https://github.com/ocornut/imgui/issues/551)
 - Flexium: [FlexGUI](https://github.com/DXsmiley/FlexGUI)
 - GML/GameMakerStudio2: [ImGuiGML](https://marketplace.yoyogames.com/assets/6221/imguigml)
 - Irrlicht: [IrrIMGUI](https://github.com/ZahlGraf/IrrIMGUI)
 - Ogre: [ogreimgui](https://bitbucket.org/LMCrashy/ogreimgui/src)
 - OpenFrameworks: [ofxImGui](https://github.com/jvcleave/ofxImGui)
 - OpenSceneGraph/OSG: [gist](https://gist.github.com/fulezi/d2442ca7626bf270226014501357042c)
+- ORX: [pr #1843](https://github.com/ocornut/imgui/pull/1843)
 - LÖVE+Lua: [love-imgui](https://github.com/slages/love-imgui)
 - Magnum: [magnum-imgui](https://github.com/lecopivo/magnum-imgui), [MagnumImguiPort](https://github.com/lecopivo/MagnumImguiPort)
 - NanoRT: [syoyo/imgui](https://github.com/syoyo/imgui/tree/nanort)
@@ -152,10 +154,11 @@ For other bindings: see [Bindings](https://github.com/ocornut/imgui/wiki/Binding
 
 Roadmap
 -------
-Some of the goals for 2018 are:
+Some of the goals for 2019 are:
+- Finish work on docking, tabs. (see [#2109](https://github.com/ocornut/imgui/issues/2109), public branch looking for feedback)
+- Finish work on multiple viewports / multiple OS windows. (see [#1542](https://github.com/ocornut/imgui/issues/1542), public branch looking for feedback)
 - Finish work on gamepad/keyboard controls. (see [#787](https://github.com/ocornut/imgui/issues/787))
-- Finish work on viewports and multiple OS windows management. (see [#1542](https://github.com/ocornut/imgui/issues/1542))
-- Finish work on docking, tabs. (see [#351](https://github.com/ocornut/imgui/issues/351#issuecomment-346865709))
+- Add an automation and testing system, both to test the library and end-user apps.
 - Make Columns better. (they are currently pretty terrible!)
 - Make the examples look better, improve styles, improve font support, make the examples hi-DPI aware.
 
@@ -210,14 +213,14 @@ The Immediate Mode GUI paradigm may at first appear unusual to some users. This
 - [Nicolas Guillemot's CppCon'16 flash-talk about Dear ImGui](https://www.youtube.com/watch?v=LSRJ1jZq90k).
 - [Thierry Excoffier's Zero Memory Widget](http://perso.univ-lyon1.fr/thierry.excoffier/ZMW/).
 
-See the [Wiki](https://github.com/ocornut/imgui/wiki) and [Bindings](https://github.com/ocornut/imgui/wiki/Bindings) for third-party bindings to different languages and frameworks.
+See the [Wiki](https://github.com/ocornut/imgui/wiki) for more references and [Bindings](https://github.com/ocornut/imgui/wiki/Bindings) for third-party bindings to different languages and frameworks.
 
 Support Forums
 --------------
 
-If you have issues with: compiling, linking, adding fonts, running or displaying Dear ImGui, or wiring inputs: please post on the Discourse forum: https://discourse.dearimgui.org/c/getting-started.
+If you have issues with: compiling, linking, adding fonts, running or displaying Dear ImGui, or wiring inputs: please post on the Discourse forum: https://discourse.dearimgui.org.
 
-For any other questions, bug reports, requests, feedback, you may post on https://github.com/ocornut/imgui/issues.
+For any other questions, bug reports, requests, feedback, you may post on https://github.com/ocornut/imgui/issues. Please read and fill the New Issue template carefully.
 
 Frequently Asked Question (FAQ)
 -------------------------------
@@ -228,14 +231,17 @@ Frequently Asked Question (FAQ)
 - Example code is in imgui_demo.cpp and particularly the ImGui::ShowDemoWindow() function. It covers most features of ImGui so you can read the code and call the function itself to see its output. 
 - Standalone example applications using e.g. OpenGL/DirectX are provided in the examples/ folder. 
 - We obviously needs better documentation! Consider contributing or becoming a [Patron](http://www.patreon.com/imgui) to promote this effort.
+- Your programming IDE is your friend, find the type or function declaration to find comments associated to it. 
 
 **Which version should I get?**
 
 I occasionally tag [Releases](https://github.com/ocornut/imgui/releases) but it is generally safe and recommended to sync to master/latest. The library is fairly stable and regressions tend to be fixed fast when reported. 
 
+You may also peak at the [Multi-Viewport](https://github.com/ocornut/imgui/issues/1542) and [Docking](https://github.com/ocornut/imgui/issues/2109) branches. Even though they are marked beta, several projects are using them and they are kept in sync with master regularly.
+
 **Who uses Dear ImGui?**
 
-See the [Software using dear imgui page](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) for an (incomplete) list of games/software which are publicly known to use dear imgui. Please add yours if you can!
+See the [Quotes](https://github.com/ocornut/imgui/wiki/Quotes) and [Software using dear imgui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) pages for an (incomplete) list of games/software which are publicly known to use dear imgui. Please add yours if you can!
 
 **Why the odd dual naming, "dear imgui" vs "ImGui"?**
 
@@ -280,7 +286,7 @@ You can alter the look of the interface to some degree: changing colors, sizes,
 
 Dear ImGui takes advantage of a few C++ languages features for convenience but nothing anywhere Boost-insanity/quagmire. Dear ImGui does NOT require C++11 so it can be used with most old C++ compilers. Dear ImGui doesn't use any C++ header file. Language-wise, function overloading and default parameters are used to make the API easier to use and code more terse. Doing so I believe the API is sitting on a sweet spot and giving up on those features would make the API more cumbersome. Other features such as namespace, constructors and templates (in the case of the ImVector<> class) are also relied on as a convenience.
 
-There is a [c-api for ImGui (cimgui)](https://github.com/Extrawurst/cimgui) by Stephan Dilly + a newer, [auto-generated cimgui](https://github.com/sonoro1234/cimgui) by sonoro1234. Both are designed for binding other languages. I would suggest using your target language functionalities to try replicating the function overloading and default parameters used in C++ else the API may be harder to use. Also see [Bindings](https://github.com/ocornut/imgui/wiki/Bindings) for third-party bindings to other languages.
+There is an auto-generated [c-api for Dear ImGui (cimgui)](https://github.com/cimgui/cimgui) by Sonoro1234 and Stephan Dilly. This is designed for binding other languages. If possible, I would suggest using your target language functionalities to try replicating the function overloading and default parameters used in C++ else the API may be harder to use. Also see [Bindings](https://github.com/ocornut/imgui/wiki/Bindings) for third-party bindings to other languages.
 
 Support dear imgui
 ------------------
@@ -302,13 +308,13 @@ If your company uses dear imgui, please consider financial support (e.g. sponsor
 - Blizzard Entertainment.
 
 **Double-chocolate sponsors**
-- Media Molecule, Mobigame, Insomniac Games, Aras Pranckevičius, Lizardcube, Greggman, DotEmu, Nadeo, Supercell, Runner, Artometa, Friendly Shade.
+- Media Molecule, Mobigame, Insomniac Games, Aras Pranckevičius, Lizardcube, Greggman, DotEmu, Nadeo, Supercell, Runner.
 
 **Salty caramel supporters**
 - Jetha Chan, Wild Sheep Studio, Pastagames, Mārtiņš Možeiko, Daniel Collin, Recognition Robotics, Chris Genova, ikrima, Glenn Fiedler, Geoffrey Evans, Dakko Dakko, Mercury Labs, Singularity Demo Group, Mischa Alff, Sebastien Ronsse, Lionel Landwerlin, Nikolay Ivanov, Ron Gilbert, Brandon Townsend, Nikhil Deshpande, Cort Stratton, drudru, Harfang 3D, Jeff Roberts.
 
 **Caramel supporters**
-- Michel Courtine, César Leblic, Dale Kim, Alex Evans, Rui Figueira, Paul Patrashcu, Jerome Lanquetot, Ctrl Alt Ninja, Paul Fleming, Neil Henning, Stephan Dilly, Neil Blakey-Milner, Aleksei, NeiloGD, Justin Paver, FiniteSol, Vincent Pancaldi, James Billot, Robin Hübner, furrtek, Eric, Simon Barratt, Game Atelier, Julian Bosch, Simon Lundmark, Vincent Hamm, Farhan Wali, Matt Reyer, Colin Riley, Victor Martins, Josh Simmons, Garrett Hoofman, Sergio Gonzales, Andrew Berridge, Roy Eltham, Game Preservation Society, Kit framework, Josh Faust, Martin Donlon, Quinton, Felix, Andrew Belt, Codecat, Cort Stratton, Claudio Canepa, Doug McNabb, Emmanuel Julien, Guillaume Chereau, Jeffrey Slutter, Jeremiah Deckard, r-lyeh, Roger Clark, Nekith, Joshua Fisher, Malte Hoffmann, Mustafa Karaalioglu, Merlyn Morgan-Graham, Per Vognsen, Fabian Giesen, Jan Staubach, Matt Hargett, John Shearer, Jesse Chounard, kingcoopa, Miloš Tošić, Jonas Bernemann, Johan Andersson, Nathan Hartman, Michael Labbe, Tomasz Golebiowski, Louis Schnellbach, Felipe Alfonso, Jimmy Andrews, Bojan Endrovski, Robin Berg Pettersen, Rachel Crawford, Edsel Malasig, Andrew Johnson, Sean Hunter, Jordan Mellow, Nefarius Software Solutions, Laura Wieme, Robert Nix, Mick Honey, Astrofra, Jonas Lehmann, Steven Kah Hien Wong, Bartosz Bielecki, Oscar Penas, A M, Liam Moynihan.
+- Michel Courtine, César Leblic, Dale Kim, Alex Evans, Rui Figueira, Paul Patrashcu, Jerome Lanquetot, Ctrl Alt Ninja, Paul Fleming, Neil Henning, Stephan Dilly, Neil Blakey-Milner, Aleksei, NeiloGD, Justin Paver, FiniteSol, Vincent Pancaldi, James Billot, Robin Hübner, furrtek, Eric, Simon Barratt, Game Atelier, Julian Bosch, Simon Lundmark, Vincent Hamm, Farhan Wali, Matt Reyer, Colin Riley, Victor Martins, Josh Simmons, Garrett Hoofman, Sergio Gonzales, Andrew Berridge, Roy Eltham, Game Preservation Society, Kit framework, Josh Faust, Martin Donlon, Quinton, Felix, Andrew Belt, Codecat, Cort Stratton, Claudio Canepa, Doug McNabb, Emmanuel Julien, Guillaume Chereau, Jeffrey Slutter, Jeremiah Deckard, r-lyeh, Roger Clark, Nekith, Joshua Fisher, Malte Hoffmann, Mustafa Karaalioglu, Merlyn Morgan-Graham, Per Vognsen, Fabian Giesen, Jan Staubach, Matt Hargett, John Shearer, Jesse Chounard, kingcoopa, Miloš Tošić, Jonas Bernemann, Johan Andersson, Nathan Hartman, Michael Labbe, Tomasz Golebiowski, Louis Schnellbach, Felipe Alfonso, Jimmy Andrews, Bojan Endrovski, Robin Berg Pettersen, Rachel Crawford, Edsel Malasig, Andrew Johnson, Sean Hunter, Jordan Mellow, Nefarius Software Solutions, Laura Wieme, Robert Nix, Mick Honey, Astrofra, Jonas Lehmann, Steven Kah Hien Wong, Bartosz Bielecki, Oscar Penas, A M, Liam Moynihan, Artometa.
 
 And all other supporters; THANK YOU!
 (Please contact me if you would like to be added or removed from this list)

examples/README.txt

@@ -44,7 +44,7 @@ You can find binaries of some of those example applications at:
  - Dear ImGui has 0 to 1 frame of lag for most behaviors, at 60 FPS your experience should be pleasant.
    However, consider that OS mouse cursors are typically drawn through a specific hardware accelerated path
    and will feel smoother than common GPU rendered contents (including Dear ImGui windows). 
-   You may experiment with the io.MouseDrawCursor flag to request ImGui to draw a mouse cursor itself, 
+   You may experiment with the io.MouseDrawCursor flag to request Dear ImGui to draw a mouse cursor itself, 
    to visualize the lag between a hardware cursor and a software cursor. However, rendering a mouse cursor
    at 60 FPS will feel slow. It might be beneficial to the user experience to switch to a software rendered
    cursor only when an interactive drag is in progress. 
@@ -179,7 +179,7 @@ example_glfw_opengl2/
     **DO NOT USE OPENGL2 CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
     **Prefer using OPENGL3 code (with gl3w/glew/glad, you can replace the OpenGL function loader)**
     GLFW + OpenGL2 example (legacy, fixed pipeline).
-    This code is mostly provided as a reference to learn about ImGui integration, because it is shorter.
+    This code is mostly provided as a reference to learn about Dear ImGui integration, because it is shorter.
     If your code is using GL3+ context or any semi modern OpenGL calls, using this renderer is likely to
     make things more complicated, will require your code to reset many OpenGL attributes to their initial
     state, and might confuse your GPU driver. One star, not recommended.
@@ -200,7 +200,7 @@ example_sdl_opengl2/
     **DO NOT USE OPENGL2 CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
     **Prefer using OPENGL3 code (with gl3w/glew/glad, you can replace the OpenGL function loader)**
     SDL2 (Win32, Mac, Linux etc.) + OpenGL example (legacy, fixed pipeline).
-    This code is mostly provided as a reference to learn about ImGui integration, because it is shorter.
+    This code is mostly provided as a reference to learn about Dear ImGui integration, because it is shorter.
     If your code is using GL3+ context or any semi modern OpenGL calls, using this renderer is likely to
     make things more complicated, will require your code to reset many OpenGL attributes to their initial
     state, and might confuse your GPU driver. One star, not recommended. 

examples/example_allegro5/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for Allegro 5
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for Allegro 5
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 
 #include <stdint.h>
 #include <allegro5/allegro.h>
@@ -22,14 +22,16 @@ int main(int, char**)
     al_register_event_source(queue, al_get_keyboard_event_source());
     al_register_event_source(queue, al_get_mouse_event_source());
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
+
+    // Setup Platform/Renderer bindings
     ImGui_ImplAllegro5_Init(display);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_apple_metal/Shared/ViewController.mm

@@ -45,9 +45,9 @@
     
     // If we want to receive key events, we either need to be in the responder chain of the key view,
     // or else we can install a local monitor. The consequence of this heavy-handed approach is that
-    // we receive events for all controls, not just ImGui widgets. If we had native controls in our
-    // window, we'd want to be much more careful than just ingesting the complete event stream, though
-    // we do make an effort to be good citizens by passing along events when ImGui doesn't want to capture.
+    // we receive events for all controls, not just Dear ImGui widgets. If we had native controls in our
+    // window, we'd want to be much more careful than just ingesting the complete event stream, though we
+    // do make an effort to be good citizens by passing along events when Dear ImGui doesn't want to capture.
     NSEventMask eventMask = NSEventMaskKeyDown | NSEventMaskKeyUp | NSEventMaskFlagsChanged | NSEventTypeScrollWheel;
     [NSEvent addLocalMonitorForEventsMatchingMask:eventMask handler:^NSEvent * _Nullable(NSEvent *event) {
         BOOL wantsCapture = ImGui_ImplOSX_HandleEvent(event, self.view);

examples/example_apple_metal/example_apple_metal.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 50;
+	objectVersion = 48;
 	objects = {
 
 /* Begin PBXBuildFile section */

examples/example_apple_opengl2/example_apple_opengl2.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 50;
+	objectVersion = 48;
 	objects = {
 
 /* Begin PBXBuildFile section */

examples/example_apple_opengl2/main.mm

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for OSX + OpenGL2, using legacy fixed pipeline
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for OSX + OpenGL2, using legacy fixed pipeline
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 
 #include "imgui.h"
 #include "../imgui_impl_osx.h"
@@ -237,16 +237,17 @@
     if ([view openGLContext] == nil)
         NSLog(@"No OpenGL Context!");
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplOSX_Init();
     ImGui_ImplOpenGL2_Init();
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_freeglut_opengl2/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for FreeGLUT + OpenGL2, using legacy fixed pipeline
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for FreeGLUT + OpenGL2, using legacy fixed pipeline
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 // (Using GLUT or FreeGLUT is not recommended unless you really miss the 90's)
 
 #include "imgui.h"
@@ -57,7 +57,7 @@ void my_display_code()
 
 void glut_display_func()
 {
-    // Start the ImGui frame
+    // Start the Dear ImGui frame
     ImGui_ImplOpenGL2_NewFrame();
     ImGui_ImplFreeGLUT_NewFrame();
 
@@ -95,16 +95,17 @@ int main(int argc, char** argv)
     // otherwise it is possible to install our own functions and call the imgui_impl_freeglut.h functions ourselves.
     glutDisplayFunc(glut_display_func);
 
-    // Setup ImGui binding
+    // Setup Dear ImGui context
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplFreeGLUT_Init();
     ImGui_ImplFreeGLUT_InstallFuncs();
     ImGui_ImplOpenGL2_Init();
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_glfw_opengl2/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for GLFW + OpenGL2, using legacy fixed pipeline
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for GLFW + OpenGL2, using legacy fixed pipeline
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 // (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
 
 // **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
@@ -12,6 +12,13 @@
 #include <stdio.h>
 #include <GLFW/glfw3.h>
 
+// [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers.
+// To link with VS2010-era libraries, VS2015+ requires linking with legacy_stdio_definitions.lib, which we do using this pragma. 
+// Your own project should not be affected, as you are likely to link with a newer binary of GLFW that is adequate for your version of Visual Studio.
+#if defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
+#pragma comment(lib, "legacy_stdio_definitions")
+#endif
+
 static void glfw_error_callback(int error, const char* description)
 {
     fprintf(stderr, "Glfw Error %d: %s\n", error, description);
@@ -29,17 +36,18 @@ int main(int, char**)
     glfwMakeContextCurrent(window);
     glfwSwapInterval(1); // Enable vsync
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;   // Enable Gamepad Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplGlfw_InitForOpenGL(window, true);
     ImGui_ImplOpenGL2_Init();
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_glfw_opengl3/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for GLFW + OpenGL 3, using programmable pipeline
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for GLFW + OpenGL 3, using programmable pipeline
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 // (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
 
 #include "imgui.h"
@@ -20,7 +20,15 @@
 #include IMGUI_IMPL_OPENGL_LOADER_CUSTOM
 #endif
 
-#include <GLFW/glfw3.h> // Include glfw3.h after our OpenGL definitions
+// Include glfw3.h after our OpenGL definitions
+#include <GLFW/glfw3.h> 
+
+// [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers.
+// To link with VS2010-era libraries, VS2015+ requires linking with legacy_stdio_definitions.lib, which we do using this pragma. 
+// Your own project should not be affected, as you are likely to link with a newer binary of GLFW that is adequate for your version of Visual Studio.
+#if defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
+#pragma comment(lib, "legacy_stdio_definitions")
+#endif
 
 static void glfw_error_callback(int error, const char* description)
 {
@@ -64,7 +72,9 @@ int main(int, char**)
 #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLEW)
     bool err = glewInit() != GLEW_OK;
 #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD)
-    bool err = gladLoadGL() != 0;
+    bool err = gladLoadGL() == 0;
+#else
+    bool err = false; // If you use IMGUI_IMPL_OPENGL_LOADER_CUSTOM, your loader is likely to requires some form of initialization.
 #endif
     if (err)
     {
@@ -72,17 +82,18 @@ int main(int, char**)
         return 1;
     }
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;   // Enable Gamepad Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplGlfw_InitForOpenGL(window, true);
     ImGui_ImplOpenGL3_Init(glsl_version);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_glfw_vulkan/CMakeLists.txt

@@ -32,5 +32,5 @@ include_directories(${GLFW_DIR}/deps)
 
 file(GLOB sources *.cpp)
 
-add_executable(example_glfw_vulkan ${sources} ${IMGUI_DIR}/examples/imgui_impl_glfw.cpp ${IMGUI_DIR}/examples/imgui_impl_vulkan.cpp ${IMGUI_DIR}/imgui.cpp ${IMGUI_DIR}/imgui_draw.cpp ${IMGUI_DIR}/imgui_demo.cpp)
+add_executable(example_glfw_vulkan ${sources} ${IMGUI_DIR}/examples/imgui_impl_glfw.cpp ${IMGUI_DIR}/examples/imgui_impl_vulkan.cpp ${IMGUI_DIR}/imgui.cpp ${IMGUI_DIR}/imgui_draw.cpp ${IMGUI_DIR}/imgui_demo.cpp ${IMGUI_DIR}/imgui_widgets.cpp)
 target_link_libraries(example_glfw_vulkan ${LIBRARIES})

examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
@@ -153,6 +153,7 @@
     <ClCompile Include="..\..\imgui.cpp" />
     <ClCompile Include="..\..\imgui_demo.cpp" />
     <ClCompile Include="..\..\imgui_draw.cpp" />
+    <ClCompile Include="..\..\imgui_widgets.cpp" />
     <ClCompile Include="..\imgui_impl_glfw.cpp" />
     <ClCompile Include="..\imgui_impl_vulkan.cpp" />
     <ClCompile Include="main.cpp" />

examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj.filters

@@ -28,6 +28,9 @@
     <ClCompile Include="..\imgui_impl_vulkan.cpp">
       <Filter>sources</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\imgui_widgets.cpp">
+      <Filter>imgui</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h">

examples/example_glfw_vulkan/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for Glfw + Vulkan
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for Glfw + Vulkan
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 
 #include "imgui.h"
 #include "imgui_impl_glfw.h"
@@ -11,6 +11,13 @@
 #include <GLFW/glfw3.h>
 #include <vulkan/vulkan.h>
 
+// [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers.
+// To link with VS2010-era libraries, VS2015+ requires linking with legacy_stdio_definitions.lib, which we do using this pragma. 
+// Your own project should not be affected, as you are likely to link with a newer binary of GLFW that is adequate for your version of Visual Studio.
+#if defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
+#pragma comment(lib, "legacy_stdio_definitions")
+#endif
+
 //#define IMGUI_UNLIMITED_FRAME_RATE
 #ifdef _DEBUG
 #define IMGUI_VULKAN_DEBUG_REPORT
@@ -189,12 +196,12 @@ static void SetupVulkanWindowData(ImGui_ImplVulkanH_WindowData* wd, VkSurfaceKHR
         exit(-1);
     }
 
-    // Get Surface Format
+    // Select Surface Format
     const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
     const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
     wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
 
-    // Get Present Mode
+    // Select Present Mode
 #ifdef IMGUI_UNLIMITED_FRAME_RATE
     VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR };
 #else
@@ -343,17 +350,15 @@ int main(int, char**)
     ImGui_ImplVulkanH_WindowData* wd = &g_WindowData;
     SetupVulkanWindowData(wd, surface, w, h);
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;   // Enable Gamepad Controls
 
-    // Setup GLFW binding
+    // Setup Platform/Renderer bindings
     ImGui_ImplGlfw_InitForVulkan(window, true);
-
-    // Setup Vulkan binding
     ImGui_ImplVulkan_InitInfo init_info = {};
     init_info.Instance = g_Instance;
     init_info.PhysicalDevice = g_PhysicalDevice;
@@ -366,7 +371,7 @@ int main(int, char**)
     init_info.CheckVkResultFn = check_vk_result;
     ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_marmalade/main.cpp

@@ -1,8 +1,8 @@
-// ImGui - standalone example application for Marmalade
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for Marmalade
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 
 // Copyright (C) 2015 by Giovanni Zito
-// This file is part of ImGui
+// This file is part of Dear ImGui
 
 #include "imgui.h"
 #include "imgui_impl_marmalade.h"
@@ -16,14 +16,16 @@ int main(int, char**)
 {
     IwGxInit();
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
+
+    // Setup Platform/Renderer bindings
     ImGui_Marmalade_Init(true);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_null/main.cpp

@@ -1,4 +1,4 @@
-// ImGui - null/dummy example application (compile and link imgui with no inputs, no outputs)
+// dear imgui: null/dummy example application (compile and link imgui with no inputs, no outputs)
 #include "imgui.h"
 #include <stdio.h>
 

examples/example_sdl_opengl2/README.md

@@ -4,8 +4,11 @@
 - On Windows with Visual Studio's CLI
 
 ```
-set SDL2DIR=path_to_your_sdl2_folder
-cl /Zi /MD /I %SDL2DIR%\include /I .. /I ..\.. main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /link /LIBPATH:%SDL2DIR%\lib SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+set SDL2_DIR=path_to_your_sdl2_folder
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+#          ^^ include paths                  ^^ source files                                                           ^^ output exe                    ^^ output dir   ^^ libraries
+# or for 64-bit:
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
 ```
 
 - On Linux and similar Unixes

examples/example_sdl_opengl2/build_win32.bat

@@ -1,3 +1,8 @@
 @REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
-mkdir Debug
-cl /nologo /Zi /MD /I .. /I ..\.. /I ..\libs\gl3w /I %SDL2_DIR%\include *.cpp ..\imgui_impl_opengl2.cpp ..\imgui_impl_sdl.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c /FeDebug/example_sdl_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+set OUT_DIR=Debug
+set OUT_EXE=example_sdl_opengl2.exe
+set INCLUDES=/I.. /I..\.. /I%SDL2_DIR%\include
+set SOURCES=main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl2.cpp ..\..\imgui*.cpp
+set LIBS=/libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib
+mkdir %OUT_DIR%
+cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_DIR%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

examples/example_sdl_opengl2/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for SDL2 + OpenGL
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for SDL2 + OpenGL
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 // (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
 
 // **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
@@ -34,16 +34,17 @@ int main(int, char**)
     SDL_GLContext gl_context = SDL_GL_CreateContext(window);
     SDL_GL_SetSwapInterval(1); // Enable vsync
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
     ImGui_ImplOpenGL2_Init();
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_sdl_opengl3/README.md

@@ -4,8 +4,11 @@
 - On Windows with Visual Studio's CLI
 
 ```
-set SDL2DIR=path_to_your_sdl2_folder
-cl /Zi /MD /I .. /I ..\.. /I ..\libs\gl3w /I %SDL2DIR%\include main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl3.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c /link /libpath:%SDL2DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+set SDL2_DIR=path_to_your_sdl2_folder
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include /I..\libs\gl3w main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl3.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c /FeDebug/example_sdl_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+#          ^^ include paths                                 ^^ source files                                                                                  ^^ output exe                    ^^ output dir   ^^ libraries
+# or for 64-bit:
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include /I..\libs\gl3w main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl3.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c /FeDebug/example_sdl_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
 ```
 
 - On Linux and similar Unixes

examples/example_sdl_opengl3/build_win32.bat

@@ -1,3 +1,8 @@
 @REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
-mkdir Debug
-cl /nologo /Zi /MD /I .. /I ..\.. /I ..\libs\gl3w /I %SDL2_DIR%\include *.cpp ..\imgui_impl_opengl3.cpp ..\imgui_impl_sdl.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c /FeDebug/example_sdl_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+set OUT_DIR=Debug
+set OUT_EXE=example_sdl_opengl3.exe
+set INCLUDES=/I.. /I..\.. /I%SDL2_DIR%\include /I..\libs\gl3w
+set SOURCES=main.cpp ..\imgui_impl_sdl.cpp ..\imgui_impl_opengl3.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c
+set LIBS=/libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib
+mkdir %OUT_DIR%
+cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

examples/example_sdl_opengl3/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for SDL2 + OpenGL
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for SDL2 + OpenGL
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 // (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
 // (GL3W is a helper library to access OpenGL functions since there is no standard header to access modern OpenGL functions easily. Alternatives are GLEW, Glad, etc.)
 
@@ -65,6 +65,8 @@ int main(int, char**)
     bool err = glewInit() != GLEW_OK;
 #elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD)
     bool err = gladLoadGL() == 0;
+#else
+    bool err = false; // If you use IMGUI_IMPL_OPENGL_LOADER_CUSTOM, your loader is likely to requires some form of initialization.
 #endif
     if (err)
     {
@@ -72,16 +74,17 @@ int main(int, char**)
         return 1;
     }
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
     ImGui_ImplOpenGL3_Init(glsl_version);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_sdl_vulkan/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for SDL2 + Vulkan
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for SDL2 + Vulkan
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 
 #include "imgui.h"
 #include "imgui_impl_sdl.h"
@@ -186,18 +186,19 @@ static void SetupVulkanWindowData(ImGui_ImplVulkanH_WindowData* wd, VkSurfaceKHR
         exit(-1);
     }
 
-    // Get Surface Format
+    // Select Surface Format
     const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
     const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
     wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
 
-    // Get Present Mode
+    // Select Present Mode
 #ifdef IMGUI_UNLIMITED_FRAME_RATE
-    VkPresentModeKHR present_mode = VK_PRESENT_MODE_IMMEDIATE_KHR;
+    VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR };
 #else
-    VkPresentModeKHR present_mode = VK_PRESENT_MODE_FIFO_KHR;
+    VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR };
 #endif
-    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_mode, 1);
+    wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes));
+    //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode);
 
     // Create SwapChain, RenderPass, Framebuffer, etc.
     ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(g_PhysicalDevice, g_Device, g_QueueFamily, wd, g_Allocator);
@@ -332,15 +333,13 @@ int main(int, char**)
     ImGui_ImplVulkanH_WindowData* wd = &g_WindowData;
     SetupVulkanWindowData(wd, surface, w, h);
 
-    // Setup ImGui binding
+    // Setup Dear ImGui context
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
 
-    // Setup SDL binding
+    // Setup Platform/Renderer bindings
     ImGui_ImplSDL2_InitForVulkan(window);
-
-    // Setup Vulkan binding
     ImGui_ImplVulkan_InitInfo init_info = {};
     init_info.Instance = g_Instance;
     init_info.PhysicalDevice = g_PhysicalDevice;
@@ -353,7 +352,7 @@ int main(int, char**)
     init_info.CheckVkResultFn = check_vk_result;
     ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 
@@ -481,8 +480,9 @@ int main(int, char**)
     ImGui_ImplVulkan_Shutdown();
     ImGui_ImplSDL2_Shutdown();
     ImGui::DestroyContext();
-    SDL_DestroyWindow(window);
     CleanupVulkan();
+
+    SDL_DestroyWindow(window);
     SDL_Quit();
 
     return 0;

examples/example_win32_directx10/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for DirectX 10
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for DirectX 10
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 
 #include "imgui.h"
 #include "imgui_impl_win32.h"
@@ -75,11 +75,9 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
     case WM_SIZE:
         if (g_pd3dDevice != NULL && wParam != SIZE_MINIMIZED)
         {
-            ImGui_ImplDX10_InvalidateDeviceObjects();
             CleanupRenderTarget();
             g_pSwapChain->ResizeBuffers(0, (UINT)LOWORD(lParam), (UINT)HIWORD(lParam), DXGI_FORMAT_UNKNOWN, 0);
             CreateRenderTarget();
-            ImGui_ImplDX10_CreateDeviceObjects();
         }
         return 0;
     case WM_SYSCOMMAND:
@@ -112,16 +110,17 @@ int main(int, char**)
     ShowWindow(hwnd, SW_SHOWDEFAULT);
     UpdateWindow(hwnd);
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplWin32_Init(hwnd);
     ImGui_ImplDX10_Init(g_pd3dDevice);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_win32_directx11/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for DirectX 11
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui - standalone example application for DirectX 11
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 
 #include "imgui.h"
 #include "imgui_impl_win32.h"
@@ -78,11 +78,9 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
     case WM_SIZE:
         if (g_pd3dDevice != NULL && wParam != SIZE_MINIMIZED)
         {
-            ImGui_ImplDX11_InvalidateDeviceObjects();
             CleanupRenderTarget();
             g_pSwapChain->ResizeBuffers(0, (UINT)LOWORD(lParam), (UINT)HIWORD(lParam), DXGI_FORMAT_UNKNOWN, 0);
             CreateRenderTarget();
-            ImGui_ImplDX11_CreateDeviceObjects();
         }
         return 0;
     case WM_SYSCOMMAND:
@@ -115,16 +113,17 @@ int main(int, char**)
     ShowWindow(hwnd, SW_SHOWDEFAULT);
     UpdateWindow(hwnd);
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplWin32_Init(hwnd);
     ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_win32_directx12/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for DirectX 12
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for DirectX 12
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 // FIXME: 64-bit only for now! (Because sizeof(ImTextureId) == sizeof(void*))
 
 #include "imgui.h"
@@ -286,19 +286,20 @@ int main(int, char**)
     ShowWindow(hwnd, SW_SHOWDEFAULT);
     UpdateWindow(hwnd);
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
 
+    // Setup Platform/Renderer bindings
     ImGui_ImplWin32_Init(hwnd);
     ImGui_ImplDX12_Init(g_pd3dDevice, NUM_FRAMES_IN_FLIGHT, 
         DXGI_FORMAT_R8G8B8A8_UNORM,
         g_pd3dSrvDescHeap->GetCPUDescriptorHandleForHeapStart(), 
         g_pd3dSrvDescHeap->GetGPUDescriptorHandleForHeapStart());
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/example_win32_directx9/main.cpp

@@ -1,5 +1,5 @@
-// ImGui - standalone example application for DirectX 9
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
+// dear imgui: standalone example application for DirectX 9
+// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
 
 #include "imgui.h"
 #include "imgui_impl_dx9.h"
@@ -75,15 +75,17 @@ int main(int, char**)
         return 0;
     }
 
-    // Setup Dear ImGui binding
+    // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
     ImGuiIO& io = ImGui::GetIO(); (void)io;
     //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
+
+    // Setup Platform/Renderer bindings
     ImGui_ImplWin32_Init(hwnd);
     ImGui_ImplDX9_Init(g_pd3dDevice);
 
-    // Setup style
+    // Setup Style
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsClassic();
 

examples/imgui_impl_allegro5.cpp

@@ -1,13 +1,13 @@
-// ImGui Renderer + Platform Binding for: Allegro 5
+// dear imgui: Renderer + Platform Binding for Allegro 5
 // (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
 
 // Implemented features:
 //  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
 //  [X] Platform: Clipboard support (from Allegro 5.1.12)
 //  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
-
 // Issues:
-//  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert the format of vertices.
+//  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
+//  [ ] Platform: Missing gamepad support.
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
@@ -15,6 +15,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendPlatformName/io.BackendRendererName so they can be displayed in the About Window.
 //  2018-06-13: Platform: Added clipboard support (from Allegro 5.1.12).
 //  2018-06-13: Renderer: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
 //  2018-06-13: Renderer: Backup/restore transform and clipping rectangle.
@@ -74,7 +75,7 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
     al_set_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA);
 
     // Setup orthographic projection matrix
-    // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
     {
         float L = draw_data->DisplayPos.x;
         float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
@@ -108,7 +109,7 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
         const int* indices = NULL;
         if (sizeof(ImDrawIdx) == 2)
         {
-            // FIXME-OPT: Unfortunately Allegro doesn't support 16-bit indices.. You can '#define ImDrawIdx int' in imconfig.h to request ImGui to output 32-bit indices.
+            // FIXME-OPT: Unfortunately Allegro doesn't support 16-bit indices.. You can '#define ImDrawIdx int' in imconfig.h to request Dear ImGui to output 32-bit indices.
             // Otherwise, we convert them from 16-bit to 32-bit at runtime here, which works perfectly but is a little wasteful.
             static ImVector<int> indices_converted;
             indices_converted.resize(cmd_list->IdxBuffer.Size);
@@ -231,6 +232,7 @@ bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display)
     // Setup back-end capabilities flags
     ImGuiIO& io = ImGui::GetIO();
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;       // We can honor GetMouseCursor() values (optional)
+    io.BackendPlatformName = io.BackendRendererName = "imgui_impl_allegro5";
 
     // Create custom vertex declaration.
     // Unfortunately Allegro doesn't support 32-bits packed colors so we have to convert them to 4 floats.

examples/imgui_impl_allegro5.h

@@ -1,12 +1,13 @@
-// ImGui Renderer + Platform Binding for: Allegro 5
+// dear imgui: Renderer + Platform Binding for Allegro 5
 // (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
 
 // Implemented features:
 //  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Platform: Clipboard support (from Allegro 5.1.12)
 //  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Issues:
-//  [ ] Renderer: The renderer is suboptimal as we need to convert vertices.
-//  [ ] Platform: Missing clipboard support via al_set_clipboard_text/al_clipboard_has_text.
+//  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
+//  [ ] Platform: Missing gamepad support.
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.

examples/imgui_impl_dx10.cpp

@@ -1,4 +1,4 @@
-// ImGui Renderer for: DirectX10
+// dear imgui: Renderer for DirectX10
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
@@ -10,6 +10,7 @@
 
 // CHANGELOG 
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
 //  2018-07-13: DirectX10: Fixed unreleased resources in Init and Shutdown functions.
 //  2018-06-08: Misc: Extracted imgui_impl_dx10.cpp/.h away from the old combined DX10+Win32 example.
 //  2018-06-08: DirectX10: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
@@ -463,6 +464,9 @@ void    ImGui_ImplDX10_InvalidateDeviceObjects()
 
 bool    ImGui_ImplDX10_Init(ID3D10Device* device)
 {
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererName = "imgui_impl_dx10";
+
     // Get factory from device
     IDXGIDevice* pDXGIDevice = NULL;
     IDXGIAdapter* pDXGIAdapter = NULL;

examples/imgui_impl_dx10.h

@@ -1,4 +1,4 @@
-// ImGui Renderer for: DirectX10
+// dear imgui: Renderer for DirectX10
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
@@ -8,6 +8,8 @@
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
 // https://github.com/ocornut/imgui
 
+#pragma once
+
 struct ID3D10Device;
 
 IMGUI_IMPL_API bool     ImGui_ImplDX10_Init(ID3D10Device* device);

examples/imgui_impl_dx11.cpp

@@ -1,4 +1,4 @@
-// ImGui Renderer for: DirectX11
+// dear imgui: Renderer for DirectX11
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
@@ -10,6 +10,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
 //  2018-08-01: DirectX11: Querying for IDXGIFactory instead of IDXGIFactory1 to increase compatibility.
 //  2018-07-13: DirectX11: Fixed unreleased resources in Init and Shutdown functions.
 //  2018-06-08: Misc: Extracted imgui_impl_dx11.cpp/.h away from the old combined DX11+Win32 example.
@@ -470,6 +471,9 @@ void    ImGui_ImplDX11_InvalidateDeviceObjects()
 
 bool    ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context)
 {
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererName = "imgui_impl_dx11";
+
     // Get factory from device
     IDXGIDevice* pDXGIDevice = NULL;
     IDXGIAdapter* pDXGIAdapter = NULL;

examples/imgui_impl_dx11.h

@@ -1,4 +1,4 @@
-// ImGui Renderer for: DirectX11
+// dear imgui: Renderer for DirectX11
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
@@ -8,6 +8,8 @@
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
 // https://github.com/ocornut/imgui
 
+#pragma once
+
 struct ID3D11Device;
 struct ID3D11DeviceContext;
 

examples/imgui_impl_dx12.cpp

@@ -1,4 +1,4 @@
-// ImGui Renderer for: DirectX12
+// dear imgui: Renderer for DirectX12
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
@@ -12,6 +12,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
 //  2018-06-12: DirectX12: Moved the ID3D12GraphicsCommandList* parameter from NewFrame() to RenderDrawData().
 //  2018-06-08: Misc: Extracted imgui_impl_dx12.cpp/.h away from the old combined DX12+Win32 example.
 //  2018-06-08: DirectX12: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle (to ease support for future multi-viewport).
@@ -586,6 +587,9 @@ void    ImGui_ImplDX12_InvalidateDeviceObjects()
 bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format,
                          D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle)
 {
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererName = "imgui_impl_dx12";
+
     g_pd3dDevice = device;
     g_RTVFormat = rtv_format;
     g_hFontSrvCpuDescHandle = font_srv_cpu_desc_handle;

examples/imgui_impl_dx12.h

@@ -1,4 +1,4 @@
-// ImGui Renderer for: DirectX12
+// dear imgui: Renderer for DirectX12
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
@@ -10,6 +10,8 @@
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
 // https://github.com/ocornut/imgui
 
+#pragma once
+
 enum DXGI_FORMAT;
 struct ID3D12Device;
 struct ID3D12GraphicsCommandList;

examples/imgui_impl_dx9.cpp

@@ -1,4 +1,4 @@
-// ImGui Renderer for: DirectX9
+// dear imgui: Renderer for DirectX9
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
@@ -10,6 +10,7 @@
 
 // CHANGELOG 
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
 //  2018-06-08: Misc: Extracted imgui_impl_dx9.cpp/.h away from the old combined DX9+Win32 example.
 //  2018-06-08: DirectX9: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
 //  2018-05-07: Render: Saving/restoring Transform because they don't seem to be included in the StateBlock. Setting shading mode to Gouraud.
@@ -140,7 +141,7 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
     g_pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
 
     // Setup orthographic projection matrix
-    // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
     // Being agnostic of whether <d3dx9.h> or <DirectXMath.h> can be used, we aren't relying on D3DXMatrixIdentity()/D3DXMatrixOrthoOffCenterLH() or DirectX::XMMatrixIdentity()/DirectX::XMMatrixOrthographicOffCenterLH()
     {
         float L = draw_data->DisplayPos.x + 0.5f;
@@ -199,6 +200,9 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
 
 bool ImGui_ImplDX9_Init(IDirect3DDevice9* device)
 {
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererName = "imgui_impl_dx9";
+
     g_pd3dDevice = device;
     return true;
 }

examples/imgui_impl_dx9.h

@@ -1,4 +1,4 @@
-// ImGui Renderer for: DirectX9
+// dear imgui: Renderer for DirectX9
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
@@ -8,6 +8,8 @@
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
 // https://github.com/ocornut/imgui
 
+#pragma once
+
 struct IDirect3DDevice9;
 
 IMGUI_IMPL_API bool     ImGui_ImplDX9_Init(IDirect3DDevice9* device);

examples/imgui_impl_freeglut.cpp

@@ -1,8 +1,9 @@
-// ImGui Platform Binding for: FreeGLUT
+// dear imgui: Platform Binding for FreeGLUT
 // This needs to be used along with a Renderer (e.g. OpenGL2)
 
 // Issues:
 //  [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I
+//  [ ] Platform: Missing gamepad support.
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
@@ -10,6 +11,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
 //  2018-03-22: Added FreeGLUT Platform binding.
 
 #include "imgui.h"
@@ -25,6 +27,8 @@ static int g_Time = 0;          // Current time, in milliseconds
 bool ImGui_ImplFreeGLUT_Init()
 {
     ImGuiIO& io = ImGui::GetIO();
+    io.BackendPlatformName ="imgui_impl_freeglut";
+
     g_Time = 0;
 
     // Glut has 1 function for characters and one for "special keys". We map the characters in the 0..255 range and the keys above.
@@ -97,7 +101,7 @@ void ImGui_ImplFreeGLUT_KeyboardFunc(unsigned char c, int x, int y)
     //printf("char_down_func %d '%c'\n", c, c);
     ImGuiIO& io = ImGui::GetIO();
     if (c >= 32)
-        io.AddInputCharacter(c);
+        io.AddInputCharacter((unsigned short)c);
 
     // Store letters in KeysDown[] array as both uppercase and lowercase + Handle GLUT translating CTRL+A..CTRL+Z as 1..26. 
     // This is a hacky mess but GLUT is unable to distinguish e.g. a TAB key from CTRL+I so this is probably the best we can do here.

examples/imgui_impl_freeglut.h

@@ -1,13 +1,16 @@
-// ImGui Platform Binding for: FreeGLUT
+// dear imgui: Platform Binding for FreeGLUT
 // This needs to be used along with a Renderer (e.g. OpenGL2)
 
 // Issues:
 //  [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I
+//  [ ] Platform: Missing gamepad support.
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
 // https://github.com/ocornut/imgui
 
+#pragma once
+
 IMGUI_IMPL_API bool     ImGui_ImplFreeGLUT_Init();
 IMGUI_IMPL_API void     ImGui_ImplFreeGLUT_InstallFuncs();
 IMGUI_IMPL_API void     ImGui_ImplFreeGLUT_Shutdown();

examples/imgui_impl_glfw.cpp

@@ -1,10 +1,10 @@
-// ImGui Platform Binding for: GLFW
+// dear imgui: Platform Binding for GLFW
 // This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan..)
 // (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
 
 // Implemented features:
 //  [X] Platform: Clipboard support.
-//  [X] Platform: Gamepad navigation mapping. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
 //  [x] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: 3 cursors types are missing from GLFW.
 //  [X] Platform: Keyboard arrays indexed using GLFW_KEY_* codes, e.g. ImGui::IsKeyPressed(GLFW_KEY_SPACE).
 
@@ -14,6 +14,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
+//  2018-11-07: Inputs: When installing our GLFW callbacks, we save user's previously installed ones - if any - and chain call them.
 //  2018-08-01: Inputs: Workaround for Emscripten which doesn't seem to handle focus related calls.
 //  2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
 //  2018-06-08: Misc: Extracted imgui_impl_glfw.cpp/.h away from the old combined GLFW+OpenGL/Vulkan examples.
@@ -51,11 +53,17 @@ enum GlfwClientApi
     GlfwClientApi_OpenGL,
     GlfwClientApi_Vulkan
 };
-static GLFWwindow*      g_Window = NULL;
-static GlfwClientApi    g_ClientApi = GlfwClientApi_Unknown;
-static double           g_Time = 0.0;
-static bool             g_MouseJustPressed[5] = { false, false, false, false, false };
-static GLFWcursor*      g_MouseCursors[ImGuiMouseCursor_COUNT] = { 0 };
+static GLFWwindow*          g_Window = NULL;
+static GlfwClientApi        g_ClientApi = GlfwClientApi_Unknown;
+static double               g_Time = 0.0;
+static bool                 g_MouseJustPressed[5] = { false, false, false, false, false };
+static GLFWcursor*          g_MouseCursors[ImGuiMouseCursor_COUNT] = { 0 };
+
+// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
+static GLFWmousebuttonfun   g_PrevUserCallbackMousebutton = NULL;
+static GLFWscrollfun        g_PrevUserCallbackScroll = NULL;
+static GLFWkeyfun           g_PrevUserCallbackKey = NULL;
+static GLFWcharfun          g_PrevUserCallbackChar = NULL;
 
 static const char* ImGui_ImplGlfw_GetClipboardText(void* user_data)
 {
@@ -67,49 +75,53 @@ static void ImGui_ImplGlfw_SetClipboardText(void* user_data, const char* text)
     glfwSetClipboardString((GLFWwindow*)user_data, text);
 }
 
-void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow*, int button, int action, int /*mods*/)
+void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods)
 {
+    if (g_PrevUserCallbackMousebutton != NULL)
+        g_PrevUserCallbackMousebutton(window, button, action, mods);
+
     if (action == GLFW_PRESS && button >= 0 && button < IM_ARRAYSIZE(g_MouseJustPressed))
         g_MouseJustPressed[button] = true;
 }
 
-void ImGui_ImplGlfw_ScrollCallback(GLFWwindow*, double xoffset, double yoffset)
+void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset)
 {
+    if (g_PrevUserCallbackScroll != NULL)
+        g_PrevUserCallbackScroll(window, xoffset, yoffset);
+
     ImGuiIO& io = ImGui::GetIO();
     io.MouseWheelH += (float)xoffset;
     io.MouseWheel += (float)yoffset;
 }
 
-void ImGui_ImplGlfw_KeyCallback(GLFWwindow*, int key, int, int action, int mods)
+void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods)
 {
+    if (g_PrevUserCallbackKey != NULL) 
+        g_PrevUserCallbackKey(window, key, scancode, action, mods);
+
     ImGuiIO& io = ImGui::GetIO();
     if (action == GLFW_PRESS)
         io.KeysDown[key] = true;
     if (action == GLFW_RELEASE)
         io.KeysDown[key] = false;
 
-    (void)mods; // Modifiers are not reliable across systems
+    // Modifiers are not reliable across systems
     io.KeyCtrl = io.KeysDown[GLFW_KEY_LEFT_CONTROL] || io.KeysDown[GLFW_KEY_RIGHT_CONTROL];
     io.KeyShift = io.KeysDown[GLFW_KEY_LEFT_SHIFT] || io.KeysDown[GLFW_KEY_RIGHT_SHIFT];
     io.KeyAlt = io.KeysDown[GLFW_KEY_LEFT_ALT] || io.KeysDown[GLFW_KEY_RIGHT_ALT];
     io.KeySuper = io.KeysDown[GLFW_KEY_LEFT_SUPER] || io.KeysDown[GLFW_KEY_RIGHT_SUPER];
 }
 
-void ImGui_ImplGlfw_CharCallback(GLFWwindow*, unsigned int c)
+void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c)
 {
+    if (g_PrevUserCallbackChar != NULL)
+        g_PrevUserCallbackChar(window, c);
+
     ImGuiIO& io = ImGui::GetIO();
     if (c > 0 && c < 0x10000)
         io.AddInputCharacter((unsigned short)c);
 }
 
-void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
-{
-    glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
-    glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
-    glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
-    glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
-}
-
 static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, GlfwClientApi client_api)
 {
     g_Window = window;
@@ -119,6 +131,7 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
     ImGuiIO& io = ImGui::GetIO();
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;         // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
+    io.BackendPlatformName = "imgui_impl_glfw";
 
     // Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array.
     io.KeyMap[ImGuiKey_Tab] = GLFW_KEY_TAB;
@@ -159,8 +172,18 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
     g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);  // FIXME: GLFW doesn't have this.
     g_MouseCursors[ImGuiMouseCursor_Hand] = glfwCreateStandardCursor(GLFW_HAND_CURSOR);
     
+    // Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
+    g_PrevUserCallbackMousebutton = NULL;
+    g_PrevUserCallbackScroll = NULL;
+    g_PrevUserCallbackKey = NULL;
+    g_PrevUserCallbackChar = NULL;
     if (install_callbacks)
-        ImGui_ImplGlfw_InstallCallbacks(window);
+    {
+        g_PrevUserCallbackMousebutton = glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
+        g_PrevUserCallbackScroll = glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
+        g_PrevUserCallbackKey = glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
+        g_PrevUserCallbackChar = glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
+    }
 
     g_ClientApi = client_api;
     return true;

examples/imgui_impl_glfw.h

@@ -1,10 +1,10 @@
-// ImGui Platform Binding for: GLFW
+// dear imgui: Platform Binding for GLFW
 // This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan..)
 // (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
 
 // Implemented features:
 //  [X] Platform: Clipboard support.
-//  [X] Platform: Gamepad navigation mapping. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
 //  [x] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: 3 cursors types are missing from GLFW.
 //  [X] Platform: Keyboard arrays indexed using GLFW_KEY_* codes, e.g. ImGui::IsKeyPressed(GLFW_KEY_SPACE).
 
@@ -16,6 +16,8 @@
 // The 'glsl_version' initialization parameter defaults to "#version 150" if NULL.
 // Only override if your GL version doesn't handle this GLSL version. Keep NULL if unsure!
 
+#pragma once
+
 struct GLFWwindow;
 
 IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks);
@@ -23,9 +25,8 @@ IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool in
 IMGUI_IMPL_API void     ImGui_ImplGlfw_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplGlfw_NewFrame();
 
-// GLFW callbacks (installed by default if you enable 'install_callbacks' during initialization)
-// Provided here if you want to chain callbacks.
-// You can also handle inputs yourself and use those as a reference.
+// InitXXX function with 'install_callbacks=true': install GLFW callbacks. They will call user's previously installed callbacks, if any.
+// InitXXX function with 'install_callbacks=false': do not install GLFW callbacks. You will need to call them yourself from your own GLFW callbacks.
 IMGUI_IMPL_API void     ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
 IMGUI_IMPL_API void     ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
 IMGUI_IMPL_API void     ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);

examples/imgui_impl_marmalade.cpp

@@ -1,5 +1,5 @@
-// ImGui Renderer + Platform Binding for: Marmalade + IwGx
-// Marmalade code: Copyright (C) 2015 by Giovanni Zito (this file is part of ImGui)
+// dear imgui: Renderer + Platform Binding for Marmalade + IwGx
+// Marmalade code: Copyright (C) 2015 by Giovanni Zito (this file is part of Dear ImGui)
 
 // Implemented features:
 //  [X] Renderer: User texture binding. Use 'CIwTexture*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
@@ -10,6 +10,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendPlatformName/io.BackendRendererName so they can be displayed in the About Window.
 //  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_Marmalade_RenderDrawData() in the .h file so you can call it yourself.
 //  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
 //  2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
@@ -42,7 +43,7 @@ void ImGui_Marmalade_RenderDrawData(ImDrawData* draw_data)
     draw_data->ScaleClipRects(io.DisplayFramebufferScale);
 
     // Render command lists
-    for(int n = 0; n < draw_data->CmdListsCount; n++)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
         const ImDrawList* cmd_list = draw_data->CmdLists[n];
         const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
@@ -51,7 +52,7 @@ void ImGui_Marmalade_RenderDrawData(ImDrawData* draw_data)
         CIwFVec2* pUVStream = IW_GX_ALLOC(CIwFVec2, nVert);
         CIwColour* pColStream = IW_GX_ALLOC(CIwColour, nVert);
 
-        for( int i=0; i < nVert; i++ )
+        for (int i = 0; i < nVert; i++)
         {
             // TODO: optimize multiplication on gpu using vertex shader/projection matrix.
             pVertStream[i].x = cmd_list->VtxBuffer[i].pos.x * g_RenderScale.x;
@@ -214,6 +215,8 @@ void    ImGui_Marmalade_InvalidateDeviceObjects()
 bool    ImGui_Marmalade_Init(bool install_callbacks)
 {
     ImGuiIO& io = ImGui::GetIO();
+    io.BackendPlatformName = io.BackendRendererName = "imgui_impl_marmalade";
+
     io.KeyMap[ImGuiKey_Tab] = s3eKeyTab;                     // Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array.
     io.KeyMap[ImGuiKey_LeftArrow] = s3eKeyLeft;
     io.KeyMap[ImGuiKey_RightArrow] = s3eKeyRight;

examples/imgui_impl_marmalade.h

@@ -1,4 +1,5 @@
-// ImGui Renderer + Platform Binding for: Marmalade + IwGx
+// dear imgui: Renderer + Platform Binding for Marmalade + IwGx
+// Marmalade code: Copyright (C) 2015 by Giovanni Zito (this file is part of Dear ImGui)
 
 // Implemented features:
 //  [X] Renderer: User texture binding. Use 'CIwTexture*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
@@ -7,8 +8,7 @@
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
 // https://github.com/ocornut/imgui
 
-// Copyright (C) 2015 by Giovanni Zito
-// This file is part of ImGui
+#pragma once
 
 IMGUI_IMPL_API bool     ImGui_Marmalade_Init(bool install_callbacks);
 IMGUI_IMPL_API void     ImGui_Marmalade_Shutdown();

examples/imgui_impl_metal.h

@@ -1,4 +1,4 @@
-// ImGui Renderer for: Metal
+// dear imgui: Renderer for Metal
 // This needs to be used along with a Platform Binding (e.g. OSX)
 
 // Implemented features:

examples/imgui_impl_metal.mm

@@ -1,4 +1,4 @@
-// ImGui Renderer for: Metal
+// dear imgui: Renderer for Metal
 // This needs to be used along with a Platform Binding (e.g. OSX)
 
 // Implemented features:
@@ -10,6 +10,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
 //  2018-07-05: Metal: Added new Metal backend implementation.
 
 #include "imgui.h"
@@ -65,6 +66,9 @@ static MetalContext *g_sharedMetalContext = nil;
 
 bool ImGui_ImplMetal_Init(id<MTLDevice> device)
 {
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererName = "imgui_impl_metal";
+
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
         g_sharedMetalContext = [[MetalContext alloc] init];
@@ -408,7 +412,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
     [commandEncoder setDepthStencilState:g_sharedMetalContext.depthStencilState];
     
     // Setup viewport, orthographic projection matrix
-    // Our visible imgui space lies from draw_data->DisplayPps (top left) to
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to
     // draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
     MTLViewport viewport = 
     {   

examples/imgui_impl_opengl2.cpp

@@ -1,4 +1,4 @@
-// ImGui Renderer for: OpenGL2 (legacy OpenGL, fixed pipeline)
+// dear imgui: Renderer for OpenGL2 (legacy OpenGL, fixed pipeline)
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
@@ -18,6 +18,7 @@
 
 // CHANGELOG 
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
 //  2018-08-03: OpenGL: Disabling/restoring GL_LIGHTING and GL_COLOR_MATERIAL to increase compatibility with legacy OpenGL applications.
 //  2018-06-08: Misc: Extracted imgui_impl_opengl2.cpp/.h away from the old combined GLFW/SDL+OpenGL2 examples.
 //  2018-06-08: OpenGL: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
@@ -53,6 +54,8 @@ static GLuint       g_FontTexture = 0;
 // Functions
 bool    ImGui_ImplOpenGL2_Init()
 {
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererName = "imgui_impl_opengl2";
     return true;
 }
 
@@ -102,7 +105,7 @@ void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
     //glUseProgram(0); // You may want this if using this code in an OpenGL 3+ context where shaders may be bound
 
     // Setup viewport, orthographic projection matrix
-    // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
     glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
     glMatrixMode(GL_PROJECTION);
     glPushMatrix();

examples/imgui_impl_opengl2.h

@@ -1,4 +1,4 @@
-// ImGui Renderer for: OpenGL2 (legacy OpenGL, fixed pipeline)
+// dear imgui: Renderer for OpenGL2 (legacy OpenGL, fixed pipeline)
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
@@ -16,6 +16,8 @@
 // confuse your GPU driver. 
 // The GL2 code is unable to reset attributes or even call e.g. "glUseProgram(0)" because they don't exist in that API.
 
+#pragma once
+
 IMGUI_IMPL_API bool     ImGui_ImplOpenGL2_Init();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL2_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL2_NewFrame();

examples/imgui_impl_opengl3.cpp

@@ -1,4 +1,4 @@
-// ImGui Renderer for: OpenGL3 / OpenGL ES2 / OpenGL ES3 (modern OpenGL with shaders / programmatic pipeline)
+// dear imgui: Renderer for OpenGL3 / OpenGL ES2 / OpenGL ES3 (modern OpenGL with shaders / programmatic pipeline)
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 // (Note: We are using GL3W as a helper library to access OpenGL functions since there is no standard header to access modern OpenGL functions easily. Alternatives are GLEW, Glad, etc..)
 
@@ -11,6 +11,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
+//  2018-11-13: OpenGL: Support for GL 4.5's glClipControl(GL_UPPER_LEFT).
 //  2018-08-29: OpenGL: Added support for more OpenGL loaders: glew and glad, with comments indicative that any loader can be used.
 //  2018-08-09: OpenGL: Default to OpenGL ES 3 on iOS and Android. GLSL version default to "#version 300 ES".
 //  2018-07-30: OpenGL: Support for GLSL 300 ES and 410 core. Fixes for Emscripten compilation.
@@ -99,6 +101,9 @@ static unsigned int g_VboHandle = 0, g_ElementsHandle = 0;
 // Functions
 bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
 {
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererName = "imgui_impl_opengl3";
+
     // Store GLSL version string so we can refer to it later in case we recreate shaders. Note: GLSL version is NOT the same as GL version. Leave this to NULL if unsure.
 #ifdef USE_GL_ES3
     if (glsl_version == NULL)
@@ -110,6 +115,7 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     IM_ASSERT((int)strlen(glsl_version) + 2 < IM_ARRAYSIZE(g_GlslVersionString));
     strcpy(g_GlslVersionString, glsl_version);
     strcat(g_GlslVersionString, "\n");
+
     return true;
 }
 
@@ -162,6 +168,12 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
     GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
     GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
+    bool clip_origin_lower_left = true;
+#ifdef GL_CLIP_ORIGIN
+    GLenum last_clip_origin = 0; glGetIntegerv(GL_CLIP_ORIGIN, (GLint*)&last_clip_origin); // Support for GL 4.5's glClipControl(GL_UPPER_LEFT)
+    if (last_clip_origin == GL_UPPER_LEFT)
+        clip_origin_lower_left = false;
+#endif
 
     // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, polygon fill
     glEnable(GL_BLEND);
@@ -175,7 +187,7 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
 #endif
 
     // Setup viewport, orthographic projection matrix
-    // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
     glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
     float L = draw_data->DisplayPos.x;
     float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
@@ -234,7 +246,10 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
                 if (clip_rect.x < fb_width && clip_rect.y < fb_height && clip_rect.z >= 0.0f && clip_rect.w >= 0.0f)
                 {
                     // Apply scissor/clipping rectangle
-                    glScissor((int)clip_rect.x, (int)(fb_height - clip_rect.w), (int)(clip_rect.z - clip_rect.x), (int)(clip_rect.w - clip_rect.y));
+                    if (clip_origin_lower_left)
+                        glScissor((int)clip_rect.x, (int)(fb_height - clip_rect.w), (int)(clip_rect.z - clip_rect.x), (int)(clip_rect.w - clip_rect.y));
+                    else
+                        glScissor((int)clip_rect.x, (int)clip_rect.y, (int)clip_rect.z, (int)clip_rect.w); // Support for GL 4.5's glClipControl(GL_UPPER_LEFT)
 
                     // Bind texture, Draw
                     glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->TextureId);
@@ -306,13 +321,13 @@ void ImGui_ImplOpenGL3_DestroyFontsTexture()
     }
 }
 
-// If you get an error please report on github. You may try different GL context version or GLSL version.
+// If you get an error please report on github. You may try different GL context version or GLSL version. See GL<>GLSL version table at the top of this file.
 static bool CheckShader(GLuint handle, const char* desc)
 {
     GLint status = 0, log_length = 0;
     glGetShaderiv(handle, GL_COMPILE_STATUS, &status);
     glGetShaderiv(handle, GL_INFO_LOG_LENGTH, &log_length);
-    if (status == GL_FALSE)
+    if ((GLboolean)status == GL_FALSE)
         fprintf(stderr, "ERROR: ImGui_ImplOpenGL3_CreateDeviceObjects: failed to compile %s!\n", desc);
     if (log_length > 0)
     {
@@ -321,17 +336,17 @@ static bool CheckShader(GLuint handle, const char* desc)
         glGetShaderInfoLog(handle, log_length, NULL, (GLchar*)buf.begin());
         fprintf(stderr, "%s\n", buf.begin());
     }
-    return status == GL_TRUE;
+    return (GLboolean)status == GL_TRUE;
 }
 
-// If you get an error please report on github. You may try different GL context version or GLSL version.
+// If you get an error please report on GitHub. You may try different GL context version or GLSL version.
 static bool CheckProgram(GLuint handle, const char* desc)
 {
     GLint status = 0, log_length = 0;
     glGetProgramiv(handle, GL_LINK_STATUS, &status);
     glGetProgramiv(handle, GL_INFO_LOG_LENGTH, &log_length);
-    if (status == GL_FALSE)
-        fprintf(stderr, "ERROR: ImGui_ImplOpenGL3_CreateDeviceObjects: failed to link %s!\n", desc);
+    if ((GLboolean)status == GL_FALSE)
+        fprintf(stderr, "ERROR: ImGui_ImplOpenGL3_CreateDeviceObjects: failed to link %s! (with GLSL '%s')\n", desc, g_GlslVersionString);
     if (log_length > 0)
     {
         ImVector<char> buf;
@@ -339,7 +354,7 @@ static bool CheckProgram(GLuint handle, const char* desc)
         glGetProgramInfoLog(handle, log_length, NULL, (GLchar*)buf.begin());
         fprintf(stderr, "%s\n", buf.begin());
     }
-    return status == GL_TRUE;
+    return (GLboolean)status == GL_TRUE;
 }
 
 bool    ImGui_ImplOpenGL3_CreateDeviceObjects()

examples/imgui_impl_opengl3.h

@@ -1,4 +1,4 @@
-// ImGui Renderer for: OpenGL3 / OpenGL ES2 / OpenGL ES3 (modern OpenGL with shaders / programmatic pipeline)
+// dear imgui: Renderer for OpenGL3 / OpenGL ES2 / OpenGL ES3 (modern OpenGL with shaders / programmatic pipeline)
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 // (Note: We are using GL3W as a helper library to access OpenGL functions since there is no standard header to access modern OpenGL functions easily. Alternatives are GLEW, Glad, etc..)
 
@@ -19,6 +19,8 @@
 // On computer platform the GLSL version default to "#version 130". On OpenGL ES 3 platform it defaults to "#version 300 es"
 // Only override if your GL version doesn't handle this GLSL version. See GLSL version table at the top of imgui_impl_opengl3.cpp.
 
+#pragma once
+
 // Set default OpenGL loader to be gl3w
 #if !defined(IMGUI_IMPL_OPENGL_LOADER_GL3W)     \
  && !defined(IMGUI_IMPL_OPENGL_LOADER_GLEW)     \

examples/imgui_impl_osx.h

@@ -1,4 +1,4 @@
-// ImGui Platform Binding for: OSX / Cocoa
+// dear imgui: Platform Binding for OSX / Cocoa
 // This needs to be used along with a Renderer (e.g. OpenGL2, OpenGL3, Vulkan, Metal..)
 // [BETA] Beta bindings, not well tested. If you want a portable application, prefer using the Glfw or SDL platform bindings on Mac.
 

examples/imgui_impl_osx.mm

@@ -1,4 +1,4 @@
-// ImGui Platform Binding for: OSX / Cocoa
+// dear imgui: Platform Binding for OSX / Cocoa
 // This needs to be used along with a Renderer (e.g. OpenGL2, OpenGL3, Vulkan, Metal..)
 // [BETA] Beta bindings, not well tested. If you want a portable application, prefer using the Glfw or SDL platform bindings on Mac.
 
@@ -12,6 +12,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
 //  2018-07-07: Initial version.
 
 // Data
@@ -27,6 +28,7 @@ bool ImGui_ImplOSX_Init()
     //io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
     //io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;    // We can create multi-viewports on the Platform side (optional)
     //io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can set io.MouseHoveredViewport correctly (optional, not easy)
+    io.BackendPlatformName = "imgui_impl_osx";
 
     // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
     const int offset_for_function_keys = 256 - 0xF700;
@@ -188,7 +190,7 @@ bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
         {
             int c = [str characterAtIndex:i];
             if (c < 0xF700 && !io.KeyCtrl)
-                io.AddInputCharacter(c);
+                io.AddInputCharacter((unsigned short)c);
 
             // We must reset in case we're pressing a sequence of special keys while keeping the command pressed
             int key = mapCharacterToKey(c);

examples/imgui_impl_sdl.cpp

@@ -1,4 +1,4 @@
-// ImGui Platform Binding for: SDL2
+// dear imgui: Platform Binding for SDL2
 // This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
 // (Info: SDL2 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
 
@@ -8,6 +8,7 @@
 //  [X] Platform: Keyboard arrays indexed using SDL_SCANCODE_* codes, e.g. ImGui::IsKeyPressed(SDL_SCANCODE_SPACE).
 // Missing features:
 //  [ ] Platform: SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
+//  [ ] Platform: Gamepad support (need to use SDL_GameController API to fill the io.NavInputs[] value when ImGuiConfigFlags_NavEnableGamepad is set).
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
@@ -15,6 +16,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
+//  2018-11-14: Changed the signature of ImGui_ImplSDL2_ProcessEvent() to take a 'const SDL_Event*'.
 //  2018-08-01: Inputs: Workaround for Emscripten which doesn't seem to handle focus related calls.
 //  2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
 //  2018-06-08: Misc: Extracted imgui_impl_sdl.cpp/.h away from the old combined SDL2+OpenGL/Vulkan examples.
@@ -71,7 +74,8 @@ static void ImGui_ImplSDL2_SetClipboardText(void*, const char* text)
 // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
 // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
 // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
-bool ImGui_ImplSDL2_ProcessEvent(SDL_Event* event)
+// If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
+bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
 {
     ImGuiIO& io = ImGui::GetIO();
     switch (event->type)
@@ -112,7 +116,7 @@ bool ImGui_ImplSDL2_ProcessEvent(SDL_Event* event)
     return false;
 }
 
-static bool    ImGui_ImplSDL2_Init(SDL_Window* window)
+static bool ImGui_ImplSDL2_Init(SDL_Window* window)
 {
     g_Window = window;
 
@@ -120,6 +124,7 @@ static bool    ImGui_ImplSDL2_Init(SDL_Window* window)
     ImGuiIO& io = ImGui::GetIO();
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;       // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;        // We can honor io.WantSetMousePos requests (optional, rarely used)
+    io.BackendPlatformName = "imgui_impl_sdl";
 
     // Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array.
     io.KeyMap[ImGuiKey_Tab] = SDL_SCANCODE_TAB;

examples/imgui_impl_sdl.h

@@ -1,4 +1,4 @@
-// ImGui Platform Binding for: SDL2
+// dear imgui: Platform Binding for SDL2
 // This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
 // (Info: SDL2 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
 
@@ -8,11 +8,14 @@
 //  [X] Platform: Keyboard arrays indexed using SDL_SCANCODE_* codes, e.g. ImGui::IsKeyPressed(SDL_SCANCODE_SPACE).
 // Missing features:
 //  [ ] Platform: SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
+//  [ ] Platform: Gamepad support (need to use SDL_GameController API to fill the io.NavInputs[] value when ImGuiConfigFlags_NavEnableGamepad is set).
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
 // https://github.com/ocornut/imgui
 
+#pragma once
+
 struct SDL_Window;
 typedef union SDL_Event SDL_Event;
 
@@ -20,4 +23,4 @@ IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* s
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForVulkan(SDL_Window* window);
 IMGUI_IMPL_API void     ImGui_ImplSDL2_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplSDL2_NewFrame(SDL_Window* window);
-IMGUI_IMPL_API bool     ImGui_ImplSDL2_ProcessEvent(SDL_Event* event);
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event);

examples/imgui_impl_vulkan.cpp

@@ -1,4 +1,4 @@
-// ImGui Renderer for: Vulkan
+// dear imgui: Renderer for Vulkan
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 
 // Missing features:
@@ -13,6 +13,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
 //  2018-08-25: Vulkan: Fixed mishandled VkSurfaceCapabilitiesKHR::maxImageCount=0 case.
 //  2018-06-22: Inverted the parameters to ImGui_ImplVulkan_RenderDrawData() to be consistent with other bindings.
 //  2018-06-08: Misc: Extracted imgui_impl_vulkan.cpp/.h away from the old combined GLFW+Vulkan example.
@@ -273,7 +274,7 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
     }
 
     // Setup scale and translation:
-    // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
     {
         float scale[2];
         scale[0] = 2.0f / draw_data->DisplaySize.x;
@@ -695,6 +696,9 @@ void    ImGui_ImplVulkan_InvalidateDeviceObjects()
 
 bool    ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass)
 {
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererName = "imgui_impl_vulkan";
+
     IM_ASSERT(info->Instance != VK_NULL_HANDLE);
     IM_ASSERT(info->PhysicalDevice != VK_NULL_HANDLE);
     IM_ASSERT(info->Device != VK_NULL_HANDLE);
@@ -840,6 +844,7 @@ VkPresentModeKHR ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_d
 void ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, uint32_t queue_family, ImGui_ImplVulkanH_WindowData* wd, const VkAllocationCallbacks* allocator)
 {
     IM_ASSERT(physical_device != VK_NULL_HANDLE && device != VK_NULL_HANDLE);
+    (void)physical_device;
     (void)allocator;
 
     // Create Command Buffers

examples/imgui_impl_vulkan.h

@@ -1,4 +1,4 @@
-// ImGui Renderer for: Vulkan
+// dear imgui: Renderer for Vulkan
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 
 // Missing features:
@@ -11,6 +11,8 @@
 // The aim of imgui_impl_vulkan.h/.cpp is to be usable in your engine without any modification. 
 // IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
 
+#pragma once
+
 #include <vulkan/vulkan.h>
 
 #define IMGUI_VK_QUEUED_FRAMES      2

examples/imgui_impl_win32.cpp

@@ -1,10 +1,12 @@
-// ImGui Platform Binding for: Windows (standard windows API for 32 and 64 bits applications)
+// dear imgui: Platform Binding for Windows (standard windows API for 32 and 64 bits applications)
 // This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
 
 // Implemented features:
 //  [X] Platform: Clipboard support (for Win32 this is actually part of core imgui)
 //  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Keyboard arrays indexed using VK_* Virtual Key Codes, e.g. ImGui::IsKeyPressed(VK_SPACE).
+// Missing features:
+//  [ ] Platform: Gamepad support (best leaving it to user application to fill io.NavInputs[] with gamepad inputs from their source of choice).
 
 #include "imgui.h"
 #include "imgui_impl_win32.h"
@@ -16,6 +18,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
 //  2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
 //  2018-06-10: Inputs: Fixed handling of mouse wheel messages to support fine position messages (typically sent by track-pads).
 //  2018-06-08: Misc: Extracted imgui_impl_win32.cpp/.h away from the old combined DX9/DX10/DX11/DX12 examples.
@@ -50,6 +53,7 @@ bool    ImGui_ImplWin32_Init(void* hwnd)
     ImGuiIO& io = ImGui::GetIO();
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;         // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
+    io.BackendPlatformName = "imgui_impl_win32";
     io.ImeWindowHandle = hwnd;
 
     // Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array that we will update during the application lifetime.

examples/imgui_impl_win32.h

@@ -1,10 +1,14 @@
-// ImGui Platform Binding for: Windows (standard windows API for 32 and 64 bits applications)
+// dear imgui: Platform Binding for Windows (standard windows API for 32 and 64 bits applications)
 // This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
 
 // Implemented features:
 //  [X] Platform: Clipboard support (for Win32 this is actually part of core imgui)
 //  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Keyboard arrays indexed using VK_* Virtual Key Codes, e.g. ImGui::IsKeyPressed(VK_SPACE).
+// Missing features:
+//  [ ] Platform: Gamepad support (best leaving it to user application to fill io.NavInputs[] with gamepad inputs from their source of choice).
+
+#pragma once
 
 IMGUI_IMPL_API bool     ImGui_ImplWin32_Init(void* hwnd);
 IMGUI_IMPL_API void     ImGui_ImplWin32_Shutdown();
@@ -12,7 +16,7 @@ IMGUI_IMPL_API void     ImGui_ImplWin32_NewFrame();
 
 // Handler for Win32 messages, update mouse/keyboard data.
 // You may or not need this for your implementation, but it can serve as reference for handling inputs.
-// Intentionally commented out to avoid dragging dependencies on <windows.h> types. You can copy the extern declaration in your code.
+// Intentionally commented out to avoid dragging dependencies on <windows.h> types. You can COPY this line into your .cpp code instead.
 /*
 IMGUI_IMPL_API LRESULT  ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
 */

imconfig.h

@@ -31,6 +31,7 @@
 //---- Don't implement some functions to reduce linkage requirements.
 //#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS   // [Win32] Don't implement default clipboard handler. Won't use and link with OpenClipboard/GetClipboardData/CloseClipboard etc.
 //#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS         // [Win32] Don't implement default IME handler. Won't use and link with ImmGetContext/ImmSetCompositionWindow.
+//#define IMGUI_DISABLE_WIN32_FUNCTIONS                     // [Win32] Won't use and link with any Win32 function.
 //#define IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS             // Don't implement ImFormatString/ImFormatStringV so you can implement them yourself if you don't want to link with vsnprintf.
 //#define IMGUI_DISABLE_MATH_FUNCTIONS                      // Don't implement ImFabs/ImSqrt/ImPow/ImFmod/ImCos/ImSin/ImAcos/ImAtan2 wrapper so you can implement them yourself. Declare your prototypes in imconfig.h.
 //#define IMGUI_DISABLE_DEFAULT_ALLOCATORS                  // Don't implement default allocators calling malloc()/free() to avoid linking with them. You will need to call ImGui::SetAllocatorFunctions().

imgui.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.65
+// dear imgui, v1.66b
 // (headers)
 
 // See imgui.cpp file for documentation.
@@ -6,9 +6,26 @@
 // Read 'Programmer guide' in imgui.cpp for notes on how to setup ImGui in your codebase.
 // Get latest version at https://github.com/ocornut/imgui
 
+/*
+
+Index of this file:
+// Header mess
+// Forward declarations and basic types
+// ImGui API (Dear ImGui end-user API)
+// Flags & Enumerations
+// ImGuiStyle
+// ImGuiIO
+// Misc data structures (ImGuiInputTextCallbackData, ImGuiSizeCallbackData, ImGuiPayload)
+// Obsolete functions
+// Helpers (ImVector, ImGuiOnceUponAFrame, ImGuiTextFilter, ImGuiTextBuffer, ImGuiStorage, ImGuiListClipper, ImColor)
+// Draw List API (ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListFlags, ImDrawList, ImDrawData)
+// Font API (ImFontConfig, ImFontGlyph, ImFontAtlasFlags, ImFontAtlas, ImFont)
+
+*/
+
 #pragma once
 
-// Configuration file (edit imconfig.h or define IMGUI_USER_CONFIG to set your own filename)
+// Configuration file (edit imconfig.h or define IMGUI_USER_CONFIG to your own filename)
 #ifdef IMGUI_USER_CONFIG
 #include IMGUI_USER_CONFIG
 #endif
@@ -16,6 +33,10 @@
 #include "imconfig.h"
 #endif
 
+//-----------------------------------------------------------------------------
+// Header mess
+//-----------------------------------------------------------------------------
+
 #include <float.h>                  // FLT_MAX
 #include <stdarg.h>                 // va_list
 #include <stddef.h>                 // ptrdiff_t, NULL
@@ -23,8 +44,8 @@
 
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY00 then bounced up to XYY01 when release tagging happens)
-#define IMGUI_VERSION               "1.65"
-#define IMGUI_VERSION_NUM           16501
+#define IMGUI_VERSION               "1.66b"
+#define IMGUI_VERSION_NUM           16602
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert))
 
 // Define attributes of all API symbols declarations (e.g. for DLL under Windows)
@@ -36,7 +57,7 @@
 #define IMGUI_IMPL_API              IMGUI_API
 #endif
 
-// Helpers
+// Helper Macros
 #ifndef IM_ASSERT
 #include <assert.h>
 #define IM_ASSERT(_EXPR)            assert(_EXPR)                               // You can override the default assert handler by editing imconfig.h
@@ -51,6 +72,7 @@
 #define IM_ARRAYSIZE(_ARR)          ((int)(sizeof(_ARR)/sizeof(*_ARR)))         // Size of a static C-style array. Don't use on pointers!
 #define IM_OFFSETOF(_TYPE,_MEMBER)  ((size_t)&(((_TYPE*)0)->_MEMBER))           // Offset of _MEMBER within _TYPE. Standardized as offsetof() in modern C++.
 
+// Warnings
 #if defined(__clang__)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wold-style-cast"
@@ -59,7 +81,10 @@
 #pragma GCC diagnostic ignored "-Wclass-memaccess"
 #endif
 
-// Forward declarations
+//-----------------------------------------------------------------------------
+// Forward declarations and basic types
+//-----------------------------------------------------------------------------
+
 struct ImDrawChannel;               // Temporary storage for outputting drawing commands out of order, used by ImDrawList::ChannelsSplit()
 struct ImDrawCmd;                   // A single draw command within a parent ImDrawList (generally maps to 1 GPU draw call)
 struct ImDrawData;                  // All draw command lists required to render the frame
@@ -153,8 +178,11 @@ struct ImVec4
 #endif
 };
 
-// Dear ImGui end-user API
-// (In a namespace so you can add extra functions in your own separate file. Please don't modify imgui.cpp/.h!)
+//-----------------------------------------------------------------------------
+// ImGui: Dear ImGui end-user API
+// (Inside a namespace so you can add extra functions in your own separate file. Please don't modify imgui.cpp/.h!)
+//-----------------------------------------------------------------------------
+
 namespace ImGui
 {
     // Context creation and access
@@ -176,7 +204,8 @@ namespace ImGui
 
     // Demo, Debug, Information
     IMGUI_API void          ShowDemoWindow(bool* p_open = NULL);        // create demo/test window (previously called ShowTestWindow). demonstrate most ImGui features. call this to learn about the library! try to make it always available in your application!
-    IMGUI_API void          ShowMetricsWindow(bool* p_open = NULL);     // create metrics window. display ImGui internals: draw commands (with individual draw calls and vertices), window list, basic internal state, etc.
+    IMGUI_API void          ShowAboutWindow(bool* p_open = NULL);       // create about window. display Dear ImGui version, credits and build/system information.
+    IMGUI_API void          ShowMetricsWindow(bool* p_open = NULL);     // create metrics window. display Dear ImGui internals: draw commands (with individual draw calls and vertices), window list, basic internal state, etc.
     IMGUI_API void          ShowStyleEditor(ImGuiStyle* ref = NULL);    // add style editor block (not a window). you can pass in a reference ImGuiStyle structure to compare to, revert to and save to (else it uses the default style)
     IMGUI_API bool          ShowStyleSelector(const char* label);       // add style selector block (not a window), essentially a combo listing the default styles.
     IMGUI_API void          ShowFontSelector(const char* label);        // add font selector block (not a window), essentially a combo listing the loaded fonts.
@@ -189,14 +218,20 @@ namespace ImGui
     IMGUI_API void          StyleColorsLight(ImGuiStyle* dst = NULL);   // best used with borders and a custom, thicker font
 
     // Windows
-    // (Begin = push window to the stack and start appending to it. End = pop window from the stack. You may append multiple times to the same window during the same frame)
-    // Begin()/BeginChild() return false to indicate the window being collapsed or fully clipped, so you may early out and omit submitting anything to the window.
-    // You need to always call a matching End()/EndChild() for a Begin()/BeginChild() call, regardless of its return value (this is due to legacy reason and is inconsistent with BeginMenu/EndMenu, BeginPopup/EndPopup and other functions where the End call should only be called if the corresponding Begin function returned true.)
-    // Passing 'bool* p_open != NULL' shows a close widget in the upper-right corner of the window, which when clicking will set the boolean to false.
-    // Use child windows to introduce independent scrolling/clipping regions within a host window. Child windows can embed their own child.
+    // - Begin() = push window to the stack and start appending to it. End() = pop window from the stack.
+    // - You may append multiple times to the same window during the same frame.
+    // - Passing 'bool* p_open != NULL' shows a window-closing widget in the upper-right corner of the window, which clicking will set the boolean to false when clicked.
+    // - Begin() return false to indicate the window is collapsed or fully clipped, so you may early out and omit submitting anything to the window.
+    //   Always call a matching End() for each Begin() call, regardless of its return value [this is due to legacy reason and is inconsistent with most other functions such as BeginMenu/EndMenu, BeginPopup/EndPopup, etc. where the EndXXX call should only be called if the corresponding BeginXXX function returned true.]
     IMGUI_API bool          Begin(const char* name, bool* p_open = NULL, ImGuiWindowFlags flags = 0);
     IMGUI_API void          End();
-    IMGUI_API bool          BeginChild(const char* str_id, const ImVec2& size = ImVec2(0,0), bool border = false, ImGuiWindowFlags flags = 0); // Begin a scrolling region. size==0.0f: use remaining window size, size<0.0f: use remaining window size minus abs(size). size>0.0f: fixed size. each axis can use a different mode, e.g. ImVec2(0,400).
+
+    // Child Windows
+    // - Use child windows to begin into a self-contained independent scrolling/clipping regions within a host window. Child windows can embed their own child.
+    // - For each independent axis of 'size': ==0.0f: use remaining host window size / >0.0f: fixed size / <0.0f: use remaining window size minus abs(size) / Each axis can use a different mode, e.g. ImVec2(0,400).
+    // - BeginChild() returns false to indicate the window is collapsed or fully clipped, so you may early out and omit submitting anything to the window.
+    //   Always call a matching EndChild() for each BeginChild() call, regardless of its return value [this is due to legacy reason and is inconsistent with most other functions such as BeginMenu/EndMenu, BeginPopup/EndPopup, etc. where the EndXXX call should only be called if the corresponding BeginXXX function returned true.]
+    IMGUI_API bool          BeginChild(const char* str_id, const ImVec2& size = ImVec2(0,0), bool border = false, ImGuiWindowFlags flags = 0);
     IMGUI_API bool          BeginChild(ImGuiID id, const ImVec2& size = ImVec2(0,0), bool border = false, ImGuiWindowFlags flags = 0);
     IMGUI_API void          EndChild();
 
@@ -223,7 +258,7 @@ namespace ImGui
     IMGUI_API void          SetNextWindowContentSize(const ImVec2& size);                               // set next window content size (~ enforce the range of scrollbars). not including window decorations (title bar, menu bar, etc.). set an axis to 0.0f to leave it automatic. call before Begin()
     IMGUI_API void          SetNextWindowCollapsed(bool collapsed, ImGuiCond cond = 0);                 // set next window collapsed state. call before Begin()
     IMGUI_API void          SetNextWindowFocus();                                                       // set next window to be focused / front-most. call before Begin()
-    IMGUI_API void          SetNextWindowBgAlpha(float alpha);                                          // set next window background color alpha. helper to easily modify ImGuiCol_WindowBg/ChildBg/PopupBg.
+    IMGUI_API void          SetNextWindowBgAlpha(float alpha);                                          // set next window background color alpha. helper to easily modify ImGuiCol_WindowBg/ChildBg/PopupBg. you may also use ImGuiWindowFlags_NoBackground.
     IMGUI_API void          SetWindowPos(const ImVec2& pos, ImGuiCond cond = 0);                        // (not recommended) set current window position - call within Begin()/End(). prefer using SetNextWindowPos(), as this may incur tearing and side-effects.
     IMGUI_API void          SetWindowSize(const ImVec2& size, ImGuiCond cond = 0);                      // (not recommended) set current window size - call within Begin()/End(). set to ImVec2(0,0) to force an auto-fit. prefer using SetNextWindowSize(), as this may incur tearing and minor side-effects.
     IMGUI_API void          SetWindowCollapsed(bool collapsed, ImGuiCond cond = 0);                     // (not recommended) set current window collapsed state. prefer using SetNextWindowCollapsed().
@@ -241,7 +276,7 @@ namespace ImGui
     IMGUI_API float         GetScrollMaxY();                                                // get maximum scrolling amount ~~ ContentSize.Y - WindowSize.Y
     IMGUI_API void          SetScrollX(float scroll_x);                                     // set scrolling amount [0..GetScrollMaxX()]
     IMGUI_API void          SetScrollY(float scroll_y);                                     // set scrolling amount [0..GetScrollMaxY()]
-    IMGUI_API void          SetScrollHere(float center_y_ratio = 0.5f);                     // adjust scrolling amount to make current cursor position visible. center_y_ratio=0.0: top, 0.5: center, 1.0: bottom. When using to make a "default/current item" visible, consider using SetItemDefaultFocus() instead.
+    IMGUI_API void          SetScrollHereY(float center_y_ratio = 0.5f);                     // adjust scrolling amount to make current cursor position visible. center_y_ratio=0.0: top, 0.5: center, 1.0: bottom. When using to make a "default/current item" visible, consider using SetItemDefaultFocus() instead.
     IMGUI_API void          SetScrollFromPosY(float pos_y, float center_y_ratio = 0.5f);    // adjust scrolling amount to make given position valid. use GetCursorPos() or GetCursorStartPos()+offset to get valid positions.
 
     // Parameters stacks (shared)
@@ -374,7 +409,7 @@ namespace ImGui
     IMGUI_API bool          SliderFloat2(const char* label, float v[2], float v_min, float v_max, const char* format = "%.3f", float power = 1.0f);
     IMGUI_API bool          SliderFloat3(const char* label, float v[3], float v_min, float v_max, const char* format = "%.3f", float power = 1.0f);
     IMGUI_API bool          SliderFloat4(const char* label, float v[4], float v_min, float v_max, const char* format = "%.3f", float power = 1.0f);
-    IMGUI_API bool          SliderAngle(const char* label, float* v_rad, float v_degrees_min = -360.0f, float v_degrees_max = +360.0f);
+    IMGUI_API bool          SliderAngle(const char* label, float* v_rad, float v_degrees_min = -360.0f, float v_degrees_max = +360.0f, const char* format = "%.0f deg");
     IMGUI_API bool          SliderInt(const char* label, int* v, int v_min, int v_max, const char* format = "%d");
     IMGUI_API bool          SliderInt2(const char* label, int v[2], int v_min, int v_max, const char* format = "%d");
     IMGUI_API bool          SliderInt3(const char* label, int v[3], int v_min, int v_max, const char* format = "%d");
@@ -386,7 +421,7 @@ namespace ImGui
     IMGUI_API bool          VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* v, const void* v_min, const void* v_max, const char* format = NULL, float power = 1.0f);
 
     // Widgets: Input with Keyboard
-    // If you want to use InputText() with a dynamic string type such as std::string or your own, see misc/stl/imgui_stl.h
+    // If you want to use InputText() with a dynamic string type such as std::string or your own, see misc/cpp/imgui_stdlib.h
     IMGUI_API bool          InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
     IMGUI_API bool          InputTextMultiline(const char* label, char* buf, size_t buf_size, const ImVec2& size = ImVec2(0,0), ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
     IMGUI_API bool          InputFloat(const char* label, float* v, float step = 0.0f, float step_fast = 0.0f, const char* format = "%.3f", ImGuiInputTextFlags extra_flags = 0);
@@ -478,12 +513,12 @@ namespace ImGui
     IMGUI_API bool          BeginPopupContextVoid(const char* str_id = NULL, int mouse_button = 1);                                 // helper to open and begin popup when clicked in void (where there are no imgui windows).
     IMGUI_API bool          BeginPopupModal(const char* name, bool* p_open = NULL, ImGuiWindowFlags flags = 0);                     // modal dialog (regular window with title bar, block interactions behind the modal window, can't close the modal window by clicking outside)
     IMGUI_API void          EndPopup();                                                                                             // only call EndPopup() if BeginPopupXXX() returns true!
-    IMGUI_API bool          OpenPopupOnItemClick(const char* str_id = NULL, int mouse_button = 1);                                  // helper to open popup when clicked on last item. return true when just opened.
+    IMGUI_API bool          OpenPopupOnItemClick(const char* str_id = NULL, int mouse_button = 1);                                  // helper to open popup when clicked on last item (note: actually triggers on the mouse _released_ event to be consistent with popup behaviors). return true when just opened.
     IMGUI_API bool          IsPopupOpen(const char* str_id);                                    // return true if the popup is open
     IMGUI_API void          CloseCurrentPopup();                                                // close the popup we have begin-ed into. clicking on a MenuItem or Selectable automatically close the current popup.
 
     // Columns
-    // You can also use SameLine(pos_x) for simplified columns. The columns API is still work-in-progress and rather lacking.
+    // You can also use SameLine(pos_x) for simplified columns. The columns API is work-in-progress and rather lacking (columns are arguably the worst part of dear imgui at the moment!)
     IMGUI_API void          Columns(int count = 1, const char* id = NULL, bool border = true);
     IMGUI_API void          NextColumn();                                                       // next column, defaults to current row or next row if the current row is finished
     IMGUI_API int           GetColumnIndex();                                                   // get current column index
@@ -506,20 +541,21 @@ namespace ImGui
     IMGUI_API bool          BeginDragDropSource(ImGuiDragDropFlags flags = 0);                                      // call when the current item is active. If this return true, you can call SetDragDropPayload() + EndDragDropSource()
     IMGUI_API bool          SetDragDropPayload(const char* type, const void* data, size_t size, ImGuiCond cond = 0);// type is a user defined string of maximum 32 characters. Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui.
     IMGUI_API void          EndDragDropSource();                                                                    // only call EndDragDropSource() if BeginDragDropSource() returns true!
-    IMGUI_API bool          BeginDragDropTarget();                                                                  // call after submitting an item that may receive an item. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
-    IMGUI_API const ImGuiPayload* AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0);            // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
-    IMGUI_API void          EndDragDropTarget();                                                                    // only call EndDragDropTarget() if BeginDragDropTarget() returns true!
+    IMGUI_API bool                  BeginDragDropTarget();                                                          // call after submitting an item that may receive a payload. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
+    IMGUI_API const ImGuiPayload*   AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0);          // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
+    IMGUI_API void                  EndDragDropTarget();                                                            // only call EndDragDropTarget() if BeginDragDropTarget() returns true!
+    IMGUI_API const ImGuiPayload*   GetDragDropPayload();                                                           // peek directly into the current payload from anywhere. may return NULL. use ImGuiPayload::IsDataType() to test for the payload type.
     
     // Clipping
     IMGUI_API void          PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect);
     IMGUI_API void          PopClipRect();
 
     // Focus, Activation
-    // (Prefer using "SetItemDefaultFocus()" over "if (IsWindowAppearing()) SetScrollHere()" when applicable, to make your code more forward compatible when navigation branch is merged)
-    IMGUI_API void          SetItemDefaultFocus();                                              // make last item the default focused item of a window. Please use instead of "if (IsWindowAppearing()) SetScrollHere()" to signify "default item".
+    // (Prefer using "SetItemDefaultFocus()" over "if (IsWindowAppearing()) SetScrollHereY()" when applicable to signify "this is the default item")
+    IMGUI_API void          SetItemDefaultFocus();                                              // make last item the default focused item of a window.
     IMGUI_API void          SetKeyboardFocusHere(int offset = 0);                               // focus keyboard on the next widget. Use positive 'offset' to access sub components of a multiple component widget. Use -1 to access previous widget.
 
-    // Utilities
+    // Item/Widgets Utilities
     // See Demo Window under "Widgets->Querying Status" for an interactive visualization of many of those functions.
     IMGUI_API bool          IsItemHovered(ImGuiHoveredFlags flags = 0);                         // is the last item hovered? (and usable, aka not blocked by a popup, etc.). See ImGuiHoveredFlags for more options.
     IMGUI_API bool          IsItemActive();                                                     // is the last item active? (e.g. button being held, text field being edited. This will continuously return true while holding mouse button on an item. Items that don't interact will always return false)
@@ -536,6 +572,8 @@ namespace ImGui
     IMGUI_API ImVec2        GetItemRectMax();                                                   // "
     IMGUI_API ImVec2        GetItemRectSize();                                                  // get size of last item, in screen space
     IMGUI_API void          SetItemAllowOverlap();                                              // allow last item to be overlapped by a subsequent item. sometimes useful with invisible buttons, selectables, etc. to catch unused area.
+
+    // Miscellaneous Utilities
     IMGUI_API bool          IsRectVisible(const ImVec2& size);                                  // test if rectangle (of given size, starting from cursor position) is visible / not clipped.
     IMGUI_API bool          IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max);      // test if rectangle (in screen space) is visible / not clipped. to perform coarse clipping on user's side.
     IMGUI_API double        GetTime();
@@ -547,16 +585,16 @@ namespace ImGui
     IMGUI_API ImGuiStorage* GetStateStorage();
     IMGUI_API ImVec2        CalcTextSize(const char* text, const char* text_end = NULL, bool hide_text_after_double_hash = false, float wrap_width = -1.0f);
     IMGUI_API void          CalcListClipping(int items_count, float items_height, int* out_items_display_start, int* out_items_display_end);    // calculate coarse clipping for large list of evenly sized items. Prefer using the ImGuiListClipper higher-level helper if you can.
-
     IMGUI_API bool          BeginChildFrame(ImGuiID id, const ImVec2& size, ImGuiWindowFlags flags = 0); // helper to create a child window / scrolling region that looks like a normal widget frame
     IMGUI_API void          EndChildFrame();                                                    // always call EndChildFrame() regardless of BeginChildFrame() return values (which indicates a collapsed/clipped window)
 
+    // Color Utilities
     IMGUI_API ImVec4        ColorConvertU32ToFloat4(ImU32 in);
     IMGUI_API ImU32         ColorConvertFloat4ToU32(const ImVec4& in);
     IMGUI_API void          ColorConvertRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v);
     IMGUI_API void          ColorConvertHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b);
 
-    // Inputs
+    // Inputs Utilities
     IMGUI_API int           GetKeyIndex(ImGuiKey imgui_key);                                    // map ImGuiKey_* values into user's key index. == io.KeyMap[key]
     IMGUI_API bool          IsKeyDown(int user_key_index);                                      // is key being held. == io.KeysDown[user_key_index]. note that imgui doesn't know the semantic of each entry of io.KeysDown[]. Use your own indices/enums according to how your backend/engine stored them into io.KeysDown[]!
     IMGUI_API bool          IsKeyPressed(int user_key_index, bool repeat = true);               // was key pressed (went from !Down to Down). if repeat=true, uses io.KeyRepeatDelay / KeyRepeatRate
@@ -600,6 +638,10 @@ namespace ImGui
 
 } // namespace ImGui
 
+//-----------------------------------------------------------------------------
+// Flags & Enumerations
+//-----------------------------------------------------------------------------
+
 // Flags for ImGui::Begin()
 enum ImGuiWindowFlags_
 {
@@ -611,8 +653,9 @@ enum ImGuiWindowFlags_
     ImGuiWindowFlags_NoScrollWithMouse      = 1 << 4,   // Disable user vertically scrolling with mouse wheel. On child window, mouse wheel will be forwarded to the parent unless NoScrollbar is also set.
     ImGuiWindowFlags_NoCollapse             = 1 << 5,   // Disable user collapsing window by double-clicking on it
     ImGuiWindowFlags_AlwaysAutoResize       = 1 << 6,   // Resize every window to its content every frame
+    ImGuiWindowFlags_NoBackground           = 1 << 7,   // Disable drawing background color (WindowBg, etc.) and outside border. Similar as using SetNextWindowBgAlpha(0.0f).
     ImGuiWindowFlags_NoSavedSettings        = 1 << 8,   // Never load/save settings in .ini file
-    ImGuiWindowFlags_NoInputs               = 1 << 9,   // Disable catching mouse or keyboard inputs, hovering test with pass through.
+    ImGuiWindowFlags_NoMouseInputs          = 1 << 9,   // Disable catching mouse, hovering test with pass through.
     ImGuiWindowFlags_MenuBar                = 1 << 10,  // Has a menu-bar
     ImGuiWindowFlags_HorizontalScrollbar    = 1 << 11,  // Allow horizontal scrollbar to appear (off by default). You may use SetNextWindowContentSize(ImVec2(width,0.0f)); prior to calling Begin() to specify width. Read code in imgui_demo in the "Horizontal Scrolling" section.
     ImGuiWindowFlags_NoFocusOnAppearing     = 1 << 12,  // Disable taking focus when transitioning from hidden to visible state
@@ -623,6 +666,8 @@ enum ImGuiWindowFlags_
     ImGuiWindowFlags_NoNavInputs            = 1 << 18,  // No gamepad/keyboard navigation within the window
     ImGuiWindowFlags_NoNavFocus             = 1 << 19,  // No focusing toward this window with gamepad/keyboard navigation (e.g. skipped by CTRL+TAB)
     ImGuiWindowFlags_NoNav                  = ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
+    ImGuiWindowFlags_NoDecoration           = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoCollapse,
+    ImGuiWindowFlags_NoInputs               = ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
 
     // [Internal]
     ImGuiWindowFlags_NavFlattened           = 1 << 23,  // [BETA] Allow gamepad/keyboard navigation to cross over parent border to this child (only use on child that have no scrolling!)
@@ -647,10 +692,10 @@ enum ImGuiInputTextFlags_
     ImGuiInputTextFlags_CharsNoBlank        = 1 << 3,   // Filter out spaces, tabs
     ImGuiInputTextFlags_AutoSelectAll       = 1 << 4,   // Select entire text when first taking mouse focus
     ImGuiInputTextFlags_EnterReturnsTrue    = 1 << 5,   // Return 'true' when Enter is pressed (as opposed to when the value was modified)
-    ImGuiInputTextFlags_CallbackCompletion  = 1 << 6,   // Call user function on pressing TAB (for completion handling)
-    ImGuiInputTextFlags_CallbackHistory     = 1 << 7,   // Call user function on pressing Up/Down arrows (for history handling)
-    ImGuiInputTextFlags_CallbackAlways      = 1 << 8,   // Call user function every time. User code may query cursor position, modify text buffer.
-    ImGuiInputTextFlags_CallbackCharFilter  = 1 << 9,   // Call user function to filter character. Modify data->EventChar to replace/filter input, or return 1 in callback to discard character.
+    ImGuiInputTextFlags_CallbackCompletion  = 1 << 6,   // Callback on pressing TAB (for completion handling)
+    ImGuiInputTextFlags_CallbackHistory     = 1 << 7,   // Callback on pressing Up/Down arrows (for history handling)
+    ImGuiInputTextFlags_CallbackAlways      = 1 << 8,   // Callback on each iteration. User code may query cursor position, modify text buffer.
+    ImGuiInputTextFlags_CallbackCharFilter  = 1 << 9,   // Callback on character inputs to replace or discard them. Modify 'EventChar' to replace or discard, or return 1 in callback to discard.
     ImGuiInputTextFlags_AllowTabInput       = 1 << 10,  // Pressing TAB input a '\t' character into the text field
     ImGuiInputTextFlags_CtrlEnterForNewLine = 1 << 11,  // In multi-line mode, unfocus with Enter, add new line with Ctrl+Enter (default is opposite: unfocus with Ctrl+Enter, add line with Enter).
     ImGuiInputTextFlags_NoHorizontalScroll  = 1 << 12,  // Disable following the cursor horizontally
@@ -659,7 +704,7 @@ enum ImGuiInputTextFlags_
     ImGuiInputTextFlags_Password            = 1 << 15,  // Password mode, display all characters as '*'
     ImGuiInputTextFlags_NoUndoRedo          = 1 << 16,  // Disable undo/redo. Note that input text owns the text data while active, if you want to provide your own undo/redo stack you need e.g. to call ClearActiveID().
     ImGuiInputTextFlags_CharsScientific     = 1 << 17,  // Allow 0123456789.+-*/eE (Scientific notation input)
-    ImGuiInputTextFlags_CallbackResize      = 1 << 18,  // Allow buffer capacity resize + notify when the string wants to be resized (for string types which hold a cache of their Size) (see misc/stl/imgui_stl.h for an example of using this)
+    ImGuiInputTextFlags_CallbackResize      = 1 << 18,  // Callback on buffer capacity changes request (beyond 'buf_size' parameter value), allowing the string to grow. Notify when the string wants to be resized (for string types which hold a cache of their Size). You will be provided a new BufSize in the callback and NEED to honor it. (see misc/cpp/imgui_stdlib.h for an example of using this)
     // [Internal]
     ImGuiInputTextFlags_Multiline           = 1 << 20   // For internal use by InputTextMultiline()
 };
@@ -720,7 +765,7 @@ enum ImGuiFocusedFlags_
     ImGuiFocusedFlags_None                          = 0,
     ImGuiFocusedFlags_ChildWindows                  = 1 << 0,   // IsWindowFocused(): Return true if any children of the window is focused
     ImGuiFocusedFlags_RootWindow                    = 1 << 1,   // IsWindowFocused(): Test from root window (top most parent of the current hierarchy)
-    ImGuiFocusedFlags_AnyWindow                     = 1 << 2,   // IsWindowFocused(): Return true if any window is focused
+    ImGuiFocusedFlags_AnyWindow                     = 1 << 2,   // IsWindowFocused(): Return true if any window is focused. Important: If you are trying to tell how to dispatch your low-level inputs, do NOT use this. Use ImGui::GetIO().WantCaptureMouse instead.
     ImGuiFocusedFlags_RootAndChildWindows           = ImGuiFocusedFlags_RootWindow | ImGuiFocusedFlags_ChildWindows
 };
 
@@ -852,6 +897,7 @@ enum ImGuiNavInput_
 // Configuration flags stored in io.ConfigFlags. Set by user/application.
 enum ImGuiConfigFlags_
 {
+    ImGuiConfigFlags_None                   = 0,
     ImGuiConfigFlags_NavEnableKeyboard      = 1 << 0,   // Master keyboard navigation enable flag. NewFrame() will automatically fill io.NavInputs[] based on io.KeysDown[].
     ImGuiConfigFlags_NavEnableGamepad       = 1 << 1,   // Master gamepad navigation enable flag. This is mostly to instruct your imgui back-end to fill io.NavInputs[]. Back-end also needs to set ImGuiBackendFlags_HasGamepad.
     ImGuiConfigFlags_NavEnableSetMousePos   = 1 << 2,   // Instruct navigation to move the mouse cursor. May be useful on TV/console systems where moving a virtual mouse is awkward. Will update io.MousePos and set io.WantSetMousePos=true. If enabled you MUST honor io.WantSetMousePos requests in your binding, otherwise ImGui will react as if the mouse is jumping around back and forth.
@@ -867,6 +913,7 @@ enum ImGuiConfigFlags_
 // Back-end capabilities flags stored in io.BackendFlags. Set by imgui_impl_xxx or custom back-end.
 enum ImGuiBackendFlags_
 {
+    ImGuiBackendFlags_None                  = 0,
     ImGuiBackendFlags_HasGamepad            = 1 << 0,   // Back-end supports gamepad and currently has one connected.
     ImGuiBackendFlags_HasMouseCursors       = 1 << 1,   // Back-end supports honoring GetMouseCursor() value to change the OS cursor shape.
     ImGuiBackendFlags_HasSetMousePos        = 1 << 2    // Back-end supports io.WantSetMousePos requests to reposition the OS mouse position (only used if ImGuiConfigFlags_NavEnableSetMousePos is set).
@@ -964,7 +1011,7 @@ enum ImGuiStyleVar_
 #endif
 };
 
-// Enumeration for ColorEdit3() / ColorEdit4() / ColorPicker3() / ColorPicker4() / ColorButton()
+// Flags for ColorEdit3() / ColorEdit4() / ColorPicker3() / ColorPicker4() / ColorButton()
 enum ImGuiColorEditFlags_
 {
     ImGuiColorEditFlags_None            = 0,
@@ -1019,7 +1066,8 @@ enum ImGuiMouseCursor_
 #endif
 };
 
-// Condition for ImGui::SetWindow***(), SetNextWindow***(), SetNextTreeNode***() functions
+// Enumateration for ImGui::SetWindow***(), SetNextWindow***(), SetNextTreeNode***() functions
+// Represent a condition.
 // Important: Treat as a regular enum! Do NOT combine multiple values using binary operators! All the functions above treat 0 as a shortcut to ImGuiCond_Always.
 enum ImGuiCond_
 {
@@ -1034,8 +1082,13 @@ enum ImGuiCond_
 #endif
 };
 
+//-----------------------------------------------------------------------------
+// ImGuiStyle
 // You may modify the ImGui::GetStyle() main instance during initialization and before NewFrame().
-// During the frame, use ImGui::PushStyleVar(ImGuiStyleVar_XXXX)/PopStyleVar() to alter the main style values, and ImGui::PushStyleColor(ImGuiCol_XXX)/PopStyleColor() for colors.
+// During the frame, use ImGui::PushStyleVar(ImGuiStyleVar_XXXX)/PopStyleVar() to alter the main style values, 
+// and ImGui::PushStyleColor(ImGuiCol_XXX)/PopStyleColor() for colors.
+//-----------------------------------------------------------------------------
+
 struct ImGuiStyle
 {
     float       Alpha;                      // Global alpha applies to everything in ImGui.
@@ -1073,8 +1126,12 @@ struct ImGuiStyle
     IMGUI_API void ScaleAllSizes(float scale_factor);
 };
 
-// This is where your app communicate with Dear ImGui. Access via ImGui::GetIO().
-// Read 'Programmer guide' section in .cpp file for general usage.
+//-----------------------------------------------------------------------------
+// ImGuiIO
+// Communicate most settings and inputs/outputs to Dear ImGui using this structure. 
+// Access via ImGui::GetIO(). Read 'Programmer guide' section in .cpp file for general usage.
+//-----------------------------------------------------------------------------
+
 struct ImGuiIO
 {
     //------------------------------------------------------------------
@@ -1082,7 +1139,7 @@ struct ImGuiIO
     //------------------------------------------------------------------
 
     ImGuiConfigFlags   ConfigFlags;         // = 0                  // See ImGuiConfigFlags_ enum. Set by user/application. Gamepad/keyboard navigation options, etc.
-    ImGuiBackendFlags  BackendFlags;        // = 0                  // Set ImGuiBackendFlags_ enum. Set by imgui_impl_xxx files or custom back-end to communicate features supported by the back-end.
+    ImGuiBackendFlags  BackendFlags;        // = 0                  // See ImGuiBackendFlags_ enum. Set by back-end (imgui_impl_xxx files or custom back-end) to communicate features supported by the back-end.
     ImVec2        DisplaySize;              // <unset>              // Main display size, in pixels. For clamping windows positions.
     float         DeltaTime;                // = 1.0f/60.0f         // Time elapsed since last frame, in seconds.
     float         IniSavingRate;            // = 5.0f               // Minimum time between saving positions/sizes to .ini file, in seconds.
@@ -1101,8 +1158,8 @@ struct ImGuiIO
     bool          FontAllowUserScaling;     // = false              // Allow user scaling text of individual window with CTRL+Wheel.
     ImFont*       FontDefault;              // = NULL               // Font to use on NewFrame(). Use NULL to uses Fonts->Fonts[0].
     ImVec2        DisplayFramebufferScale;  // = (1.0f,1.0f)        // For retina display or other situations where window coordinates are different from framebuffer coordinates. User storage only, presently not used by ImGui.
-    ImVec2        DisplayVisibleMin;        // <unset> (0.0f,0.0f)  // [obsolete] If you use DisplaySize as a virtual space larger than your screen, set DisplayVisibleMin/Max to the visible area.
-    ImVec2        DisplayVisibleMax;        // <unset> (0.0f,0.0f)  // [obsolete: just use io.DisplaySize] If the values are the same, we defaults to Min=(0.0f) and Max=DisplaySize
+    ImVec2        DisplayVisibleMin;        // <unset> (0.0f,0.0f)  // [OBSOLETE] If you use DisplaySize as a virtual space larger than your screen, set DisplayVisibleMin/Max to the visible area.
+    ImVec2        DisplayVisibleMax;        // <unset> (0.0f,0.0f)  // [OBSOLETE: just use io.DisplaySize!] If the values are the same, we defaults to Min=(0.0f) and Max=DisplaySize
 
     // Miscellaneous configuration options
     bool          MouseDrawCursor;              // = false          // Request ImGui to draw a mouse cursor for you (if you are on a platform without a mouse cursor). Cannot be easily renamed to 'io.ConfigXXX' because this is frequently used by back-end implementations.
@@ -1111,19 +1168,24 @@ struct ImGuiIO
     bool          ConfigResizeWindowsFromEdges; // = false          // [BETA] Enable resizing of windows from their edges and from the lower-left corner. This requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback. (This used to be the ImGuiWindowFlags_ResizeFromAnySide flag)
 
     //------------------------------------------------------------------
-    // Settings (User Functions)
+    // Platform Functions
+    // (the imgui_impl_xxxx back-end files are setting those up for you)
     //------------------------------------------------------------------
 
-    // Optional: access OS clipboard
+    // Optional: Platform/Renderer back-end name (informational only! will be displayed in About Window)
+    const char* BackendPlatformName;
+    const char* BackendRendererName;
+
+    // Optional: Access OS clipboard
     // (default to use native Win32 clipboard on Windows, otherwise uses a private clipboard. Override to access OS clipboard on other architectures)
     const char* (*GetClipboardTextFn)(void* user_data);
     void        (*SetClipboardTextFn)(void* user_data, const char* text);
     void*       ClipboardUserData;
 
-    // Optional: notify OS Input Method Editor of the screen position of your cursor for text input position (e.g. when using Japanese/Chinese IME in Windows)
+    // Optional: Notify OS Input Method Editor of the screen position of your cursor for text input position (e.g. when using Japanese/Chinese IME on Windows)
     // (default to use native imm32 api on Windows)
     void        (*ImeSetInputScreenPosFn)(int x, int y);
-    void*       ImeWindowHandle;            // (Windows) Set this to your HWND to get automatic IME cursor positioning.
+    void*       ImeWindowHandle;                // (Windows) Set this to your HWND to get automatic IME cursor positioning.
 
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
     // [OBSOLETE since 1.60+] Rendering function, will be automatically called in Render(). Please call your rendering function yourself now!
@@ -1178,7 +1240,7 @@ struct ImGuiIO
     // [Internal] ImGui will maintain those fields. Forward compatibility not guaranteed!
     //------------------------------------------------------------------
 
-    ImVec2      MousePosPrev;               // Previous mouse position temporary storage (nb: not for public use, set to MousePos in NewFrame())
+    ImVec2      MousePosPrev;               // Previous mouse position (note that MouseDelta is not necessary == MousePos-MousePosPrev, in case either position is invalid)
     ImVec2      MouseClickedPos[5];         // Position at time of clicking
     double      MouseClickedTime[5];        // Time of last click (used to figure out double-click)
     bool        MouseClicked[5];            // Mouse button went from !Down to Down
@@ -1197,6 +1259,77 @@ struct ImGuiIO
     IMGUI_API   ImGuiIO();
 };
 
+//-----------------------------------------------------------------------------
+// Misc data structures
+//-----------------------------------------------------------------------------
+
+// Shared state of InputText(), passed as an argument to your callback when a ImGuiInputTextFlags_Callback* flag is used.
+// The callback function should return 0 by default.
+// Callbacks (follow a flag name and see comments in ImGuiInputTextFlags_ declarations for more details)
+// - ImGuiInputTextFlags_CallbackCompletion:  Callback on pressing TAB
+// - ImGuiInputTextFlags_CallbackHistory:     Callback on pressing Up/Down arrows
+// - ImGuiInputTextFlags_CallbackAlways:      Callback on each iteration
+// - ImGuiInputTextFlags_CallbackCharFilter:  Callback on character inputs to replace or discard them. Modify 'EventChar' to replace or discard, or return 1 in callback to discard.
+// - ImGuiInputTextFlags_CallbackResize:      Callback on buffer capacity changes request (beyond 'buf_size' parameter value), allowing the string to grow. 
+struct ImGuiInputTextCallbackData
+{
+    ImGuiInputTextFlags EventFlag;      // One ImGuiInputTextFlags_Callback*    // Read-only
+    ImGuiInputTextFlags Flags;          // What user passed to InputText()      // Read-only
+    void*               UserData;       // What user passed to InputText()      // Read-only
+
+    // Arguments for the different callback events
+    // - To modify the text buffer in a callback, prefer using the InsertChars() / DeleteChars() function. InsertChars() will take care of calling the resize callback if necessary.
+    // - If you know your edits are not going to resize the underlying buffer allocation, you may modify the contents of 'Buf[]' directly. You need to update 'BufTextLen' accordingly (0 <= BufTextLen < BufSize) and set 'BufDirty'' to true so InputText can update its internal state.
+    ImWchar             EventChar;      // Character input                      // Read-write   // [CharFilter] Replace character with another one, or set to zero to drop. return 1 is equivalent to setting EventChar=0;
+    ImGuiKey            EventKey;       // Key pressed (Up/Down/TAB)            // Read-only    // [Completion,History]
+    char*               Buf;            // Text buffer                          // Read-write   // [Resize] Can replace pointer / [Completion,History,Always] Only write to pointed data, don't replace the actual pointer!
+    int                 BufTextLen;     // Text length (in bytes)               // Read-write   // [Resize,Completion,History,Always] Exclude zero-terminator storage. In C land: == strlen(some_text), in C++ land: string.length()
+    int                 BufSize;        // Buffer size (in bytes) = capacity+1  // Read-only    // [Resize,Completion,History,Always] Include zero-terminator storage. In C land == ARRAYSIZE(my_char_array), in C++ land: string.capacity()+1
+    bool                BufDirty;       // Set if you modify Buf/BufTextLen!    // Write        // [Completion,History,Always]
+    int                 CursorPos;      //                                      // Read-write   // [Completion,History,Always]
+    int                 SelectionStart; //                                      // Read-write   // [Completion,History,Always] == to SelectionEnd when no selection)
+    int                 SelectionEnd;   //                                      // Read-write   // [Completion,History,Always]
+
+    // Helper functions for text manipulation.
+    // Use those function to benefit from the CallbackResize behaviors. Calling those function reset the selection.
+    IMGUI_API ImGuiInputTextCallbackData();
+    IMGUI_API void      DeleteChars(int pos, int bytes_count);
+    IMGUI_API void      InsertChars(int pos, const char* text, const char* text_end = NULL);
+    bool                HasSelection() const { return SelectionStart != SelectionEnd; }
+};
+
+// Resizing callback data to apply custom constraint. As enabled by SetNextWindowSizeConstraints(). Callback is called during the next Begin().
+// NB: For basic min/max size constraint on each axis you don't need to use the callback! The SetNextWindowSizeConstraints() parameters are enough.
+struct ImGuiSizeCallbackData
+{
+    void*   UserData;       // Read-only.   What user passed to SetNextWindowSizeConstraints()
+    ImVec2  Pos;            // Read-only.   Window position, for reference.
+    ImVec2  CurrentSize;    // Read-only.   Current window size.
+    ImVec2  DesiredSize;    // Read-write.  Desired size, based on user's mouse position. Write to this field to restrain resizing.
+};
+
+// Data payload for Drag and Drop operations: AcceptDragDropPayload(), GetDragDropPayload()
+struct ImGuiPayload
+{
+    // Members
+    void*           Data;               // Data (copied and owned by dear imgui)
+    int             DataSize;           // Data size
+
+    // [Internal]
+    ImGuiID         SourceId;           // Source item id
+    ImGuiID         SourceParentId;     // Source parent id (if available)
+    int             DataFrameCount;     // Data timestamp
+    char            DataType[32+1];     // Data type tag (short user-supplied string, 32 characters max)
+    bool            Preview;            // Set when AcceptDragDropPayload() was called and mouse has been hovering the target item (nb: handle overlapping drag targets)
+    bool            Delivery;           // Set when AcceptDragDropPayload() was called and mouse button is released over the target item.
+
+    ImGuiPayload()  { Clear(); }
+    void Clear()    { SourceId = SourceParentId = 0; Data = NULL; DataSize = 0; memset(DataType, 0, sizeof(DataType)); DataFrameCount = -1; Preview = Delivery = false; }
+    bool IsDataType(const char* type) const { return DataFrameCount != -1 && strcmp(type, DataType) == 0; }
+    bool IsPreview() const                  { return Preview; }
+    bool IsDelivery() const                 { return Delivery; }
+};
+
 //-----------------------------------------------------------------------------
 // Obsolete functions (Will be removed! Read 'API BREAKING CHANGES' section in imgui.cpp for details)
 //-----------------------------------------------------------------------------
@@ -1204,6 +1337,8 @@ struct ImGuiIO
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
 namespace ImGui
 {
+    // OBSOLETED in 1.66 (from Sep 2018)
+    static inline void  SetScrollHere(float center_ratio=0.5f){ SetScrollHereY(center_ratio); }
     // OBSOLETED in 1.63 (from Aug 2018)
     static inline bool  IsItemDeactivatedAfterChange()        { return IsItemDeactivatedAfterEdit(); }
     // OBSOLETED in 1.61 (from Apr 2018)
@@ -1232,6 +1367,8 @@ namespace ImGui
     static inline bool  IsMouseHoveringAnyWindow()            { return IsWindowHovered(ImGuiHoveredFlags_AnyWindow); }
     static inline bool  IsMouseHoveringWindow()               { return IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem); }
 }
+typedef ImGuiInputTextCallback      ImGuiTextEditCallback;      // OBSOLETE in 1.63 (from Aug 2018): made the names consistent
+typedef ImGuiInputTextCallbackData  ImGuiTextEditCallbackData;
 #endif
 
 //-----------------------------------------------------------------------------
@@ -1255,7 +1392,7 @@ public:
     inline ImVector()           { Size = Capacity = 0; Data = NULL; }
     inline ~ImVector()          { if (Data) ImGui::MemFree(Data); }
     inline ImVector(const ImVector<T>& src)                     { Size = Capacity = 0; Data = NULL; operator=(src); }
-    inline ImVector& operator=(const ImVector<T>& src)          { clear(); resize(src.Size); memcpy(Data, src.Data, (size_t)Size * sizeof(value_type)); return *this; }
+    inline ImVector<T>& operator=(const ImVector<T>& src)       { clear(); resize(src.Size); memcpy(Data, src.Data, (size_t)Size * sizeof(value_type)); return *this; }
 
     inline bool                 empty() const                   { return Size == 0; }
     inline int                  size() const                    { return Size; }
@@ -1291,7 +1428,7 @@ public:
         Capacity = new_capacity;
     }
 
-    // NB: It is forbidden to call push_back/push_front/insert with a reference pointing inside the ImVector data itself! e.g. v.push_back(v[10]) is forbidden.
+    // NB: It is illegal to call push_back/push_front/insert with a reference pointing inside the ImVector data itself! e.g. v.push_back(v[10]) is forbidden.
     inline void         push_back(const value_type& v)                  { if (Size == Capacity) reserve(_grow_capacity(Size + 1)); memcpy(&Data[Size], &v, sizeof(v)); Size++; }
     inline void         pop_back()                                      { IM_ASSERT(Size > 0); Size--; }
     inline void         push_front(const value_type& v)                 { if (Size == 0) push_back(v); else insert(Data, v); }
@@ -1355,25 +1492,27 @@ struct ImGuiTextFilter
     int                 CountGrep;
 };
 
-// Helper: Text buffer for logging/accumulating text
+// Helper: Growable text buffer for logging/accumulating text
+// (this could be called 'ImGuiTextBuilder' / 'ImGuiStringBuilder')
 struct ImGuiTextBuffer
 {
     ImVector<char>      Buf;
+    static char         EmptyString[1];
 
-    ImGuiTextBuffer()   { Buf.push_back(0); }
-    inline char         operator[](int i) { return Buf.Data[i]; }
-    const char*         begin() const { return &Buf.front(); }
-    const char*         end() const { return &Buf.back(); }      // Buf is zero-terminated, so end() will point on the zero-terminator
-    int                 size() const { return Buf.Size - 1; }
-    bool                empty() { return Buf.Size <= 1; }
-    void                clear() { Buf.clear(); Buf.push_back(0); }
-    void                reserve(int capacity) { Buf.reserve(capacity); }
-    const char*         c_str() const { return Buf.Data; }
+    ImGuiTextBuffer()   { }
+    inline char         operator[](int i)       { IM_ASSERT(Buf.Data != NULL); return Buf.Data[i]; }
+    const char*         begin() const           { return Buf.Data ? &Buf.front() : EmptyString; }
+    const char*         end() const             { return Buf.Data ? &Buf.back() : EmptyString; }   // Buf is zero-terminated, so end() will point on the zero-terminator
+    int                 size() const            { return Buf.Data ? Buf.Size - 1 : 0; }
+    bool                empty()                 { return Buf.Size <= 1; }
+    void                clear()                 { Buf.clear(); }
+    void                reserve(int capacity)   { Buf.reserve(capacity); }
+    const char*         c_str() const           { return Buf.Data ? Buf.Data : EmptyString; }
     IMGUI_API void      appendf(const char* fmt, ...) IM_FMTARGS(2);
     IMGUI_API void      appendfv(const char* fmt, va_list args) IM_FMTLIST(2);
 };
 
-// Helper: key->value storage
+// Helper: Key->Value storage
 // Typically you don't have to worry about this since a storage is held within each Window.
 // We use it to e.g. store collapse state for a tree (Int 0/1)
 // This is optimized for efficient lookup (dichotomy into a contiguous buffer) and rare insertion (typically tied to user interactions aka max once a frame)
@@ -1422,73 +1561,34 @@ struct ImGuiStorage
     IMGUI_API void      BuildSortByKey();
 };
 
-// Shared state of InputText(), passed as an argument to your callback when a ImGuiInputTextFlags_Callback* flag is used.
-// The callback function should return 0 by default.
-// Special processing:
-// - ImGuiInputTextFlags_CallbackCharFilter:  return 1 if the character is not allowed. You may also set 'EventChar=0' as any character replacement are allowed.
-// - ImGuiInputTextFlags_CallbackResize:      notified by InputText() when the string is resized. BufTextLen is set to the new desired string length so you can update the string size on your side of the fence. You can also replace Buf pointer if your underlying data is reallocated. No need to initialize new characters or zero-terminator as InputText will do it right after the resize callback.
-struct ImGuiInputTextCallbackData
+// Helper: Manually clip large list of items.
+// If you are submitting lots of evenly spaced items and you have a random access to the list, you can perform coarse clipping based on visibility to save yourself from processing those items at all.
+// The clipper calculates the range of visible items and advance the cursor to compensate for the non-visible items we have skipped.
+// ImGui already clip items based on their bounds but it needs to measure text size to do so. Coarse clipping before submission makes this cost and your own data fetching/submission cost null.
+// Usage:
+//     ImGuiListClipper clipper(1000);  // we have 1000 elements, evenly spaced.
+//     while (clipper.Step())
+//         for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
+//             ImGui::Text("line number %d", i);
+// - Step 0: the clipper let you process the first element, regardless of it being visible or not, so we can measure the element height (step skipped if we passed a known height as second arg to constructor).
+// - Step 1: the clipper infer height from first element, calculate the actual range of elements to display, and position the cursor before the first element.
+// - (Step 2: dummy step only required if an explicit items_height was passed to constructor or Begin() and user call Step(). Does nothing and switch to Step 3.)
+// - Step 3: the clipper validate that we have reached the expected Y position (corresponding to element DisplayEnd), advance the cursor to the end of the list and then returns 'false' to end the loop.
+struct ImGuiListClipper
 {
-    ImGuiInputTextFlags EventFlag;      // One ImGuiInputTextFlags_Callback*    // Read-only
-    ImGuiInputTextFlags Flags;          // What user passed to InputText()      // Read-only
-    void*               UserData;       // What user passed to InputText()      // Read-only
+    float   StartPosY;
+    float   ItemsHeight;
+    int     ItemsCount, StepNo, DisplayStart, DisplayEnd;
 
-    // Arguments for the different callback events
-    // - To modify the text buffer in a callback, prefer using the InsertChars() / DeleteChars() function. InsertChars() will take care of calling the resize callback if necessary.
-    // - If you know your edits are not going to resize the underlying buffer allocation, you may modify the contents of 'Buf[]' directly. You need to update 'BufTextLen' accordingly (0 <= BufTextLen < BufSize) and set 'BufDirty'' to true so InputText can update its internal state.
-    ImWchar             EventChar;      // Character input                      // Read-write   // [CharFilter] Replace character or set to zero. return 1 is equivalent to setting EventChar=0;
-    ImGuiKey            EventKey;       // Key pressed (Up/Down/TAB)            // Read-only    // [Completion,History]
-    char*               Buf;            // Text buffer                          // Read-write   // [Resize] Can replace pointer / [Completion,History,Always] Only write to pointed data, don't replace the actual pointer!
-    int                 BufTextLen;     // Text length in bytes                 // Read-write   // [Resize,Completion,History,Always] Exclude zero-terminator storage. In C land: == strlen(some_text), in C++ land: string.length()
-    int                 BufSize;        // Buffer capacity in bytes             // Read-only    // [Resize,Completion,History,Always] Include zero-terminator storage. In C land == ARRAYSIZE(my_char_array), in C++ land: string.capacity()+1
-    bool                BufDirty;       // Set if you modify Buf/BufTextLen!!   // Write        // [Completion,History,Always]
-    int                 CursorPos;      //                                      // Read-write   // [Completion,History,Always]
-    int                 SelectionStart; //                                      // Read-write   // [Completion,History,Always] == to SelectionEnd when no selection)
-    int                 SelectionEnd;   //                                      // Read-write   // [Completion,History,Always]
+    // items_count:  Use -1 to ignore (you can call Begin later). Use INT_MAX if you don't know how many items you have (in which case the cursor won't be advanced in the final step).
+    // items_height: Use -1.0f to be calculated automatically on first step. Otherwise pass in the distance between your items, typically GetTextLineHeightWithSpacing() or GetFrameHeightWithSpacing().
+    // If you don't specify an items_height, you NEED to call Step(). If you specify items_height you may call the old Begin()/End() api directly, but prefer calling Step().
+    ImGuiListClipper(int items_count = -1, float items_height = -1.0f)  { Begin(items_count, items_height); } // NB: Begin() initialize every fields (as we allow user to call Begin/End multiple times on a same instance if they want).
+    ~ImGuiListClipper()                                                 { IM_ASSERT(ItemsCount == -1); }      // Assert if user forgot to call End() or Step() until false.
 
-    // Helper functions for text manipulation.
-    // Use those function to benefit from the CallbackResize behaviors. Calling those function reset the selection.
-    ImGuiInputTextCallbackData();
-    IMGUI_API void      DeleteChars(int pos, int bytes_count);
-    IMGUI_API void      InsertChars(int pos, const char* text, const char* text_end = NULL);
-    bool                HasSelection() const { return SelectionStart != SelectionEnd; }
-};
-
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-typedef ImGuiInputTextCallback      ImGuiTextEditCallback;      // [OBSOLETE 1.63+] Made the names consistent
-typedef ImGuiInputTextCallbackData  ImGuiTextEditCallbackData;
-#endif
-
-// Resizing callback data to apply custom constraint. As enabled by SetNextWindowSizeConstraints(). Callback is called during the next Begin().
-// NB: For basic min/max size constraint on each axis you don't need to use the callback! The SetNextWindowSizeConstraints() parameters are enough.
-struct ImGuiSizeCallbackData
-{
-    void*   UserData;       // Read-only.   What user passed to SetNextWindowSizeConstraints()
-    ImVec2  Pos;            // Read-only.   Window position, for reference.
-    ImVec2  CurrentSize;    // Read-only.   Current window size.
-    ImVec2  DesiredSize;    // Read-write.  Desired size, based on user's mouse position. Write to this field to restrain resizing.
-};
-
-// Data payload for Drag and Drop operations
-struct ImGuiPayload
-{
-    // Members
-    void*           Data;               // Data (copied and owned by dear imgui)
-    int             DataSize;           // Data size
-
-    // [Internal]
-    ImGuiID         SourceId;           // Source item id
-    ImGuiID         SourceParentId;     // Source parent id (if available)
-    int             DataFrameCount;     // Data timestamp
-    char            DataType[32+1];     // Data type tag (short user-supplied string, 32 characters max)
-    bool            Preview;            // Set when AcceptDragDropPayload() was called and mouse has been hovering the target item (nb: handle overlapping drag targets)
-    bool            Delivery;           // Set when AcceptDragDropPayload() was called and mouse button is released over the target item.
-
-    ImGuiPayload()  { Clear(); }
-    void Clear()    { SourceId = SourceParentId = 0; Data = NULL; DataSize = 0; memset(DataType, 0, sizeof(DataType)); DataFrameCount = -1; Preview = Delivery = false; }
-    bool IsDataType(const char* type) const { return DataFrameCount != -1 && strcmp(type, DataType) == 0; }
-    bool IsPreview() const                  { return Preview; }
-    bool IsDelivery() const                 { return Delivery; }
+    IMGUI_API bool Step();                                              // Call until it returns false. The DisplayStart/DisplayEnd fields will be set and you can process/draw those items.
+    IMGUI_API void Begin(int items_count, float items_height = -1.0f);  // Automatically called by constructor if you passed 'items_count' or by Step() in Step 1.
+    IMGUI_API void End();                                               // Automatically called on the last call of Step() that returns false.
 };
 
 // Helpers macros to generate 32-bits encoded colors
@@ -1531,45 +1631,16 @@ struct ImColor
     static ImColor HSV(float h, float s, float v, float a = 1.0f)   { float r,g,b; ImGui::ColorConvertHSVtoRGB(h, s, v, r, g, b); return ImColor(r,g,b,a); }
 };
 
-// Helper: Manually clip large list of items.
-// If you are submitting lots of evenly spaced items and you have a random access to the list, you can perform coarse clipping based on visibility to save yourself from processing those items at all.
-// The clipper calculates the range of visible items and advance the cursor to compensate for the non-visible items we have skipped.
-// ImGui already clip items based on their bounds but it needs to measure text size to do so. Coarse clipping before submission makes this cost and your own data fetching/submission cost null.
-// Usage:
-//     ImGuiListClipper clipper(1000);  // we have 1000 elements, evenly spaced.
-//     while (clipper.Step())
-//         for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
-//             ImGui::Text("line number %d", i);
-// - Step 0: the clipper let you process the first element, regardless of it being visible or not, so we can measure the element height (step skipped if we passed a known height as second arg to constructor).
-// - Step 1: the clipper infer height from first element, calculate the actual range of elements to display, and position the cursor before the first element.
-// - (Step 2: dummy step only required if an explicit items_height was passed to constructor or Begin() and user call Step(). Does nothing and switch to Step 3.)
-// - Step 3: the clipper validate that we have reached the expected Y position (corresponding to element DisplayEnd), advance the cursor to the end of the list and then returns 'false' to end the loop.
-struct ImGuiListClipper
-{
-    float   StartPosY;
-    float   ItemsHeight;
-    int     ItemsCount, StepNo, DisplayStart, DisplayEnd;
-
-    // items_count:  Use -1 to ignore (you can call Begin later). Use INT_MAX if you don't know how many items you have (in which case the cursor won't be advanced in the final step).
-    // items_height: Use -1.0f to be calculated automatically on first step. Otherwise pass in the distance between your items, typically GetTextLineHeightWithSpacing() or GetFrameHeightWithSpacing().
-    // If you don't specify an items_height, you NEED to call Step(). If you specify items_height you may call the old Begin()/End() api directly, but prefer calling Step().
-    ImGuiListClipper(int items_count = -1, float items_height = -1.0f)  { Begin(items_count, items_height); } // NB: Begin() initialize every fields (as we allow user to call Begin/End multiple times on a same instance if they want).
-    ~ImGuiListClipper()                                                 { IM_ASSERT(ItemsCount == -1); }      // Assert if user forgot to call End() or Step() until false.
-
-    IMGUI_API bool Step();                                              // Call until it returns false. The DisplayStart/DisplayEnd fields will be set and you can process/draw those items.
-    IMGUI_API void Begin(int items_count, float items_height = -1.0f);  // Automatically called by constructor if you passed 'items_count' or by Step() in Step 1.
-    IMGUI_API void End();                                               // Automatically called on the last call of Step() that returns false.
-};
-
 //-----------------------------------------------------------------------------
-// Draw List
+// Draw List API (ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListFlags, ImDrawList, ImDrawData)
 // Hold a series of drawing commands. The user provides a renderer for ImDrawData which essentially contains an array of ImDrawList.
 //-----------------------------------------------------------------------------
 
 // Draw callbacks for advanced uses.
-// NB- You most likely do NOT need to use draw callbacks just to create your own widget or customized UI rendering (you can poke into the draw list for that)
-// Draw callback may be useful for example, A) Change your GPU render state, B) render a complex 3D scene inside a UI element (without an intermediate texture/render target), etc.
-// The expected behavior from your rendering function is 'if (cmd.UserCallback != NULL) cmd.UserCallback(parent_list, cmd); else RenderTriangles()'
+// NB: You most likely do NOT need to use draw callbacks just to create your own widget or customized UI rendering,
+// you can poke into the draw list for that! Draw callback may be useful for example to: A) Change your GPU render state, 
+// B) render a complex 3D scene inside a UI element without an intermediate texture/render target, etc.
+// The expected behavior from your rendering function is 'if (cmd.UserCallback != NULL) { cmd.UserCallback(parent_list, cmd); } else { RenderTriangles() }'
 typedef void (*ImDrawCallback)(const ImDrawList* parent_list, const ImDrawCmd* cmd);
 
 // Typically, 1 command = 1 GPU draw call (unless command is a callback)
@@ -1581,10 +1652,10 @@ struct ImDrawCmd
     ImDrawCallback  UserCallback;           // If != NULL, call the function instead of rendering the vertices. clip_rect and texture_id will be set normally.
     void*           UserCallbackData;       // The draw callback code can access this.
 
-    ImDrawCmd() { ElemCount = 0; ClipRect.x = ClipRect.y = ClipRect.z = ClipRect.w = 0.0f; TextureId = NULL; UserCallback = NULL; UserCallbackData = NULL; }
+    ImDrawCmd() { ElemCount = 0; ClipRect.x = ClipRect.y = ClipRect.z = ClipRect.w = 0.0f; TextureId = (ImTextureID)NULL; UserCallback = NULL; UserCallbackData = NULL; }
 };
 
-// Vertex index (override with '#define ImDrawIdx unsigned int' inside in imconfig.h)
+// Vertex index (override with '#define ImDrawIdx unsigned int' in imconfig.h)
 #ifndef ImDrawIdx
 typedef unsigned short ImDrawIdx;
 #endif
@@ -1628,8 +1699,9 @@ enum ImDrawCornerFlags_
 
 enum ImDrawListFlags_
 {
-    ImDrawListFlags_AntiAliasedLines = 1 << 0,
-    ImDrawListFlags_AntiAliasedFill  = 1 << 1
+    ImDrawListFlags_None             = 0,
+    ImDrawListFlags_AntiAliasedLines = 1 << 0,  // Lines are anti-aliased (*2 the number of triangles for 1.0f wide line, otherwise *3 the number of triangles)
+    ImDrawListFlags_AntiAliasedFill  = 1 << 1   // Filled shapes have anti-aliased edges (*2 the number of vertices)
 };
 
 // Draw command list
@@ -1748,6 +1820,10 @@ struct ImDrawData
     IMGUI_API void  ScaleClipRects(const ImVec2& sc);   // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
 };
 
+//-----------------------------------------------------------------------------
+// Font API (ImFontConfig, ImFontGlyph, ImFontAtlasFlags, ImFontAtlas, ImFont)
+//-----------------------------------------------------------------------------
+
 struct ImFontConfig
 {
     void*           FontData;               //          // TTF/OTF data
@@ -1920,7 +1996,7 @@ struct ImFont
     ImVec2                      DisplayOffset;      // = (0.f,0.f)  // Offset font rendering by xx pixels
     ImVector<ImFontGlyph>       Glyphs;             //              // All glyphs.
     ImVector<float>             IndexAdvanceX;      //              // Sparse. Glyphs->AdvanceX in a directly indexable way (more cache-friendly, for CalcTextSize functions which are often bottleneck in large UI).
-    ImVector<unsigned short>    IndexLookup;        //              // Sparse. Index glyphs by Unicode code-point.
+    ImVector<ImWchar>           IndexLookup;        //              // Sparse. Index glyphs by Unicode code-point.
     const ImFontGlyph*          FallbackGlyph;      // == FindGlyph(FontFallbackChar)
     float                       FallbackAdvanceX;   // == FallbackGlyph->AdvanceX
     ImWchar                     FallbackChar;       // = '?'        // Replacement glyph if one isn't found. Only set via SetFallbackChar()
@@ -1949,7 +2025,7 @@ struct ImFont
     // 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
     IMGUI_API ImVec2            CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
     IMGUI_API const char*       CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
-    IMGUI_API void              RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, unsigned short c) const;
+    IMGUI_API void              RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const;
     IMGUI_API void              RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width = 0.0f, bool cpu_fine_clip = false) const;
 
     // [Internal]

imgui_draw.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.65
+// dear imgui, v1.66b
 // (drawing and font code)
 
 /*
@@ -32,7 +32,7 @@ Index of this file:
 
 #include <stdio.h>      // vsnprintf, sscanf, printf
 #if !defined(alloca)
-#if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__)
+#if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__) || defined(__APPLE__)
 #include <alloca.h>     // alloca (glibc uses <alloca.h>. Note that Cygwin may have _WIN32 defined, so the order matters here)
 #elif defined(_WIN32)
 #include <malloc.h>     // alloca
@@ -822,6 +822,9 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
 
 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
 {
+    if (points_count < 3)
+        return;
+
     const ImVec2 uv = _Data->TexUvWhitePixel;
 
     if (Flags & ImDrawListFlags_AntiAliasedFill)
@@ -1392,7 +1395,7 @@ ImFontAtlas::ImFontAtlas()
 {
     Locked = false;
     Flags = ImFontAtlasFlags_None;
-    TexID = NULL;
+    TexID = (ImTextureID)NULL;
     TexDesiredWidth = 0;
     TexGlyphPadding = 1;
 
@@ -1708,7 +1711,7 @@ bool    ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
 
     ImFontAtlasBuildRegisterDefaultCustomRects(atlas);
 
-    atlas->TexID = NULL;
+    atlas->TexID = (ImTextureID)NULL;
     atlas->TexWidth = atlas->TexHeight = 0;
     atlas->TexUvScale = ImVec2(0.0f, 0.0f);
     atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
@@ -1894,7 +1897,7 @@ bool    ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
                     continue;
 
                 const int codepoint = range.first_unicode_codepoint_in_range + char_idx;
-                if (cfg.MergeMode && dst_font->FindGlyphNoFallback((unsigned short)codepoint))
+                if (cfg.MergeMode && dst_font->FindGlyphNoFallback((ImWchar)codepoint))
                     continue;
 
                 float char_advance_x_org = pc.xadvance;
@@ -2316,21 +2319,21 @@ void ImFont::BuildLookupTable()
     {
         int codepoint = (int)Glyphs[i].Codepoint;
         IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
-        IndexLookup[codepoint] = (unsigned short)i;
+        IndexLookup[codepoint] = (ImWchar)i;
     }
 
     // Create a glyph to handle TAB
     // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
-    if (FindGlyph((unsigned short)' '))
+    if (FindGlyph((ImWchar)' '))
     {
         if (Glyphs.back().Codepoint != '\t')   // So we can call this function multiple times
             Glyphs.resize(Glyphs.Size + 1);
         ImFontGlyph& tab_glyph = Glyphs.back();
-        tab_glyph = *FindGlyph((unsigned short)' ');
+        tab_glyph = *FindGlyph((ImWchar)' ');
         tab_glyph.Codepoint = '\t';
         tab_glyph.AdvanceX *= 4;
         IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
-        IndexLookup[(int)tab_glyph.Codepoint] = (unsigned short)(Glyphs.Size-1);
+        IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size-1);
     }
 
     FallbackGlyph = FindGlyphNoFallback(FallbackChar);
@@ -2352,7 +2355,7 @@ void ImFont::GrowIndex(int new_size)
     if (new_size <= IndexLookup.Size)
         return;
     IndexAdvanceX.resize(new_size, -1.0f);
-    IndexLookup.resize(new_size, (unsigned short)-1);
+    IndexLookup.resize(new_size, (ImWchar)-1);
 }
 
 // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
@@ -2385,13 +2388,13 @@ void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
     IM_ASSERT(IndexLookup.Size > 0);    // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
     int index_size = IndexLookup.Size;
 
-    if (dst < index_size && IndexLookup.Data[dst] == (unsigned short)-1 && !overwrite_dst) // 'dst' already exists
+    if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
         return;
     if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
         return;
 
     GrowIndex(dst + 1);
-    IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (unsigned short)-1;
+    IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
     IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
 }
 
@@ -2399,8 +2402,8 @@ const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
 {
     if (c >= IndexLookup.Size)
         return FallbackGlyph;
-    const unsigned short i = IndexLookup[c];
-    if (i == (unsigned short)-1)
+    const ImWchar i = IndexLookup[c];
+    if (i == (ImWchar)-1)
         return FallbackGlyph;
     return &Glyphs.Data[i];
 }
@@ -2409,8 +2412,8 @@ const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
 {
     if (c >= IndexLookup.Size)
         return NULL;
-    const unsigned short i = IndexLookup[c];
-    if (i == (unsigned short)-1)
+    const ImWchar i = IndexLookup[c];
+    if (i == (ImWchar)-1)
         return NULL;
     return &Glyphs.Data[i];
 }
@@ -2608,7 +2611,7 @@ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, cons
     return text_size;
 }
 
-void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, unsigned short c) const
+void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
 {
     if (c == ' ' || c == '\t' || c == '\n' || c == '\r') // Match behavior of RenderText(), those 4 codepoints are hard-coded.
         return;
@@ -2643,11 +2646,10 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
     // Fast-forward to first visible line
     const char* s = text_begin;
     if (y + line_height < clip_rect.y && !word_wrap_enabled)
-        while (y + line_height < clip_rect.y)
+        while (y + line_height < clip_rect.y && s < text_end)
         {
-            while (s < text_end)
-                if (*s++ == '\n')
-                    break;
+            s = (const char*)memchr(s, '\n', text_end - s);
+            s = s ? s + 1 : text_end;
             y += line_height;
         }
 
@@ -2657,15 +2659,16 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
     {
         const char* s_end = s;
         float y_end = y;
-        while (y_end < clip_rect.w)
+        while (y_end < clip_rect.w && s_end < text_end)
         {
-            while (s_end < text_end)
-                if (*s_end++ == '\n')
-                    break;
+            s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
+            s_end = s_end ? s_end + 1 : text_end;
             y_end += line_height;
         }
         text_end = s_end;
     }
+    if (s == text_end)
+        return;
 
     // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
     const int vtx_count_max = (int)(text_end - s) * 4;
@@ -2733,7 +2736,7 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
         }
 
         float char_width = 0.0f;
-        if (const ImFontGlyph* glyph = FindGlyph((unsigned short)c))
+        if (const ImFontGlyph* glyph = FindGlyph((ImWchar)c))
         {
             char_width = glyph->AdvanceX * scale;
 

imgui_internal.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.65
+// dear imgui, v1.66b
 // (internal structures/api)
 
 // You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility!
@@ -63,6 +63,7 @@ typedef int ImGuiNavDirSourceFlags; // -> enum ImGuiNavDirSourceFlags_ // Flags:
 typedef int ImGuiNavMoveFlags;      // -> enum ImGuiNavMoveFlags_      // Flags: for navigation requests
 typedef int ImGuiSeparatorFlags;    // -> enum ImGuiSeparatorFlags_    // Flags: for Separator() - internal
 typedef int ImGuiSliderFlags;       // -> enum ImGuiSliderFlags_       // Flags: for SliderBehavior()
+typedef int ImGuiDragFlags;         // -> enum ImGuiDragFlags_         // Flags: for DragBehavior()
 
 //-------------------------------------------------------------------------
 // STB libraries
@@ -141,7 +142,8 @@ IMGUI_API void          ImStrncpy(char* dst, const char* src, size_t count);
 IMGUI_API char*         ImStrdup(const char* str);
 IMGUI_API const char*   ImStrchrRange(const char* str_begin, const char* str_end, char c);
 IMGUI_API int           ImStrlenW(const ImWchar* str);
-IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin); // Find beginning-of-line
+IMGUI_API const char*   ImStreolRange(const char* str, const char* str_end);                // End end-of-line
+IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin);   // Find beginning-of-line
 IMGUI_API const char*   ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end);
 IMGUI_API void          ImStrTrimBlanks(char* str);
 IMGUI_API int           ImFormatString(char* buf, size_t buf_size, const char* fmt, ...) IM_FMTARGS(3);
@@ -211,6 +213,30 @@ static inline ImVec2 ImRotate(const ImVec2& v, float cos_a, float sin_a)
 static inline float  ImLinearSweep(float current, float target, float speed)    { if (current < target) return ImMin(current + speed, target); if (current > target) return ImMax(current - speed, target); return current; }
 static inline ImVec2 ImMul(const ImVec2& lhs, const ImVec2& rhs)                { return ImVec2(lhs.x * rhs.x, lhs.y * rhs.y); }
 
+// Helper: ImPool<>. Basic keyed storage for contiguous instances, slow/amortized insertion, O(1) indexable, O(Log N) queries by ID over a dense/hot buffer,
+// Honor constructor/destructor. Add/remove invalidate all pointers. Indexes have the same lifetime as the associated object.
+typedef int ImPoolIdx;
+template<typename T>
+struct IMGUI_API ImPool
+{
+    ImVector<T>     Data;       // Contiguous data
+    ImGuiStorage    Map;        // ID->Index
+    ImPoolIdx       FreeIdx;    // Next free idx to use
+
+    ImPool()    { FreeIdx = 0; }
+    ~ImPool()   { Clear(); }
+    T*          GetByKey(ImGuiID key)               { int idx = Map.GetInt(key, -1); return (idx != -1) ? &Data[idx] : NULL; }
+    T*          GetByIndex(ImPoolIdx n)             { return &Data[n]; }
+    ImPoolIdx   GetIndex(const T* p) const          { IM_ASSERT(p >= Data.Data && p < Data.Data + Data.Size); return (ImPoolIdx)(p - Data.Data); }
+    T*          GetOrAddByKey(ImGuiID key)          { int* p_idx = Map.GetIntRef(key, -1); if (*p_idx != -1) return &Data[*p_idx]; *p_idx = FreeIdx; return Add(); }
+    void        Clear()                             { for (int n = 0; n < Map.Data.Size; n++) { int idx = Map.Data[n].val_i; if (idx != -1) Data[idx].~T(); }  Map.Clear(); Data.clear(); FreeIdx = 0; }
+    T*          Add()                               { int idx = FreeIdx; if (idx == Data.Size) { Data.resize(Data.Size + 1); FreeIdx++; } else { FreeIdx = *(int*)&Data[idx]; } IM_PLACEMENT_NEW(&Data[idx]) T(); return &Data[idx]; }
+    void        Remove(ImGuiID key, const T* p)     { Remove(key, GetIndex(p)); }
+    void        Remove(ImGuiID key, ImPoolIdx idx)  { Data[idx].~T(); *(int*)&Data[idx] = FreeIdx; FreeIdx = idx; Map.SetInt(key, -1); }
+    void        Reserve(int capacity)               { Data.reserve(capacity); Map.Data.reserve(capacity); }
+    int         GetSize() const                     { return Data.Size; }
+};
+
 //-----------------------------------------------------------------------------
 // Types
 //-----------------------------------------------------------------------------
@@ -248,6 +274,12 @@ enum ImGuiSliderFlags_
     ImGuiSliderFlags_Vertical               = 1 << 0
 };
 
+enum ImGuiDragFlags_
+{
+    ImGuiDragFlags_None                     = 0,
+    ImGuiDragFlags_Vertical                 = 1 << 0
+};
+
 enum ImGuiColumnsFlags_
 {
     // Default: 0
@@ -649,7 +681,8 @@ struct ImGuiContext
     int                     FrameCount;
     int                     FrameCountEnded;
     int                     FrameCountRendered;
-    ImVector<ImGuiWindow*>  Windows;
+    ImVector<ImGuiWindow*>  Windows;                            // Windows, sorted in display order, back to front
+    ImVector<ImGuiWindow*>  WindowsFocusOrder;                  // Windows, sorted in focus order, back to front
     ImVector<ImGuiWindow*>  WindowsSortBuffer;
     ImVector<ImGuiWindow*>  CurrentWindowStack;
     ImGuiStorage            WindowsById;
@@ -660,7 +693,8 @@ struct ImGuiContext
     ImGuiID                 HoveredId;                          // Hovered widget
     bool                    HoveredIdAllowOverlap;
     ImGuiID                 HoveredIdPreviousFrame;
-    float                   HoveredIdTimer;
+    float                   HoveredIdTimer;                     // Measure contiguous hovering time
+    float                   HoveredIdNotActiveTimer;            // Measure contiguous hovering time where the item has not been active
     ImGuiID                 ActiveId;                           // Active widget
     ImGuiID                 ActiveIdPreviousFrame;
     ImGuiID                 ActiveIdIsAlive;                    // Active widget has been seen this frame (we can't use a bool as the ActiveId may change within the frame)
@@ -677,8 +711,9 @@ struct ImGuiContext
     ImGuiInputSource        ActiveIdSource;                     // Activating with mouse or nav (gamepad/keyboard)
     ImGuiID                 LastActiveId;                       // Store the last non-zero ActiveId, useful for animation.
     float                   LastActiveIdTimer;                  // Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.
+    ImVec2                  LastValidMousePos;
     ImGuiWindow*            MovingWindow;                       // Track the window we clicked on (in order to preserve focus). The actually window that is moved is generally MovingWindow->RootWindow.
-    ImVector<ImGuiColorMod>   ColorModifiers;                     // Stack for PushStyleColor()/PopStyleColor()
+    ImVector<ImGuiColorMod> ColorModifiers;                     // Stack for PushStyleColor()/PopStyleColor()
     ImVector<ImGuiStyleMod> StyleModifiers;                     // Stack for PushStyleVar()/PopStyleVar()
     ImVector<ImFont*>       FontStack;                          // Stack for PushFont()/PopFont()
     ImVector<ImGuiPopupRef> OpenPopupStack;                     // Which popups are open (persistent)
@@ -697,7 +732,7 @@ struct ImGuiContext
     ImGuiID                 NavJustTabbedId;                    // Just tabbed to this id.
     ImGuiID                 NavJustMovedToId;                   // Just navigated to this id (result of a successfully MoveRequest)
     ImGuiID                 NavNextActivateId;                  // Set by ActivateItem(), queued until next frame
-    ImGuiInputSource        NavInputSource;                     // Keyboard or Gamepad mode?
+    ImGuiInputSource        NavInputSource;                     // Keyboard or Gamepad mode? THIS WILL ONLY BE None or NavGamepad or NavKeyboard.
     ImRect                  NavScoringRectScreen;               // Rectangle used for scoring, in screen space. Based of window->DC.NavRefRectRel[], modified for directional navigation scoring.
     int                     NavScoringCount;                    // Metrics for debugging
     ImGuiWindow*            NavWindowingTarget;                 // When selecting a window (holding Menu+FocusPrev/Next, or equivalent of CTRL-TAB) this window is temporarily displayed front-most.
@@ -807,7 +842,7 @@ struct ImGuiContext
         HoveredId = 0;
         HoveredIdAllowOverlap = false;
         HoveredIdPreviousFrame = 0;
-        HoveredIdTimer = 0.0f;
+        HoveredIdTimer = HoveredIdNotActiveTimer = 0.0f;
         ActiveId = 0;
         ActiveIdPreviousFrame = 0;
         ActiveIdIsAlive = 0;
@@ -823,6 +858,7 @@ struct ImGuiContext
         ActiveIdSource = ImGuiInputSource_None;
         LastActiveId = 0;
         LastActiveIdTimer = 0.0f;
+        LastValidMousePos = ImVec2(0.0f, 0.0f);
         MovingWindow = NULL;
         NextTreeNodeOpenVal = false;
         NextTreeNodeOpenCond = 0;
@@ -897,13 +933,13 @@ struct ImGuiContext
 // This is going to be exposed in imgui.h when stabilized enough.
 enum ImGuiItemFlags_
 {
-    ImGuiItemFlags_AllowKeyboardFocus           = 1 << 0,  // true
+    ImGuiItemFlags_NoTabStop                    = 1 << 0,  // false
     ImGuiItemFlags_ButtonRepeat                 = 1 << 1,  // false    // Button() will return true multiple times based on io.KeyRepeatDelay and io.KeyRepeatRate settings.
     ImGuiItemFlags_Disabled                     = 1 << 2,  // false    // [BETA] Disable interactions but doesn't affect visuals yet. See github.com/ocornut/imgui/issues/211
     ImGuiItemFlags_NoNav                        = 1 << 3,  // false
     ImGuiItemFlags_NoNavDefaultFocus            = 1 << 4,  // false
     ImGuiItemFlags_SelectableDontClosePopup     = 1 << 5,  // false    // MenuItem/Selectable() automatically closes current Popup window
-    ImGuiItemFlags_Default_                     = ImGuiItemFlags_AllowKeyboardFocus
+    ImGuiItemFlags_Default_                     = 0
 };
 
 // Transient per-window data, reset at the beginning of the frame. This used to be called ImGuiDrawContext, hence the DC variable name in ImGuiWindow.
@@ -1111,17 +1147,21 @@ namespace ImGui
     // - You are calling ImGui functions after ImGui::EndFrame()/ImGui::Render() and before the next ImGui::NewFrame(), which is also illegal.
     inline    ImGuiWindow*  GetCurrentWindowRead()      { ImGuiContext& g = *GImGui; return g.CurrentWindow; }
     inline    ImGuiWindow*  GetCurrentWindow()          { ImGuiContext& g = *GImGui; g.CurrentWindow->WriteAccessed = true; return g.CurrentWindow; }
+    IMGUI_API ImGuiWindow*  FindWindowByID(ImGuiID id);
     IMGUI_API ImGuiWindow*  FindWindowByName(const char* name);
     IMGUI_API void          FocusWindow(ImGuiWindow* window);
-    IMGUI_API void          FocusFrontMostActiveWindowIgnoringOne(ImGuiWindow* ignore_window);
-    IMGUI_API void          BringWindowToFront(ImGuiWindow* window);
-    IMGUI_API void          BringWindowToBack(ImGuiWindow* window);
+    IMGUI_API void          FocusPreviousWindowIgnoringOne(ImGuiWindow* ignore_window);
+    IMGUI_API void          BringWindowToFocusFront(ImGuiWindow* window);
+    IMGUI_API void          BringWindowToDisplayFront(ImGuiWindow* window);
+    IMGUI_API void          BringWindowToDisplayBack(ImGuiWindow* window);
     IMGUI_API void          UpdateWindowParentAndRootLinks(ImGuiWindow* window, ImGuiWindowFlags flags, ImGuiWindow* parent_window);
     IMGUI_API ImVec2        CalcWindowExpectedSize(ImGuiWindow* window);
     IMGUI_API bool          IsWindowChildOf(ImGuiWindow* window, ImGuiWindow* potential_parent);
     IMGUI_API bool          IsWindowNavFocusable(ImGuiWindow* window);
     IMGUI_API void          SetWindowScrollX(ImGuiWindow* window, float new_scroll_x);
     IMGUI_API void          SetWindowScrollY(ImGuiWindow* window, float new_scroll_y);
+    IMGUI_API float         GetWindowScrollMaxX(ImGuiWindow* window);
+    IMGUI_API float         GetWindowScrollMaxY(ImGuiWindow* window);
     IMGUI_API ImRect        GetWindowAllowedExtentRect(ImGuiWindow* window);
     IMGUI_API void          SetCurrentFont(ImFont* font);
     inline ImFont*          GetDefaultFont() { ImGuiContext& g = *GImGui; return g.IO.FontDefault ? g.IO.FontDefault : g.IO.Fonts->Fonts[0]; }
@@ -1240,7 +1280,7 @@ namespace ImGui
 
     // Widgets low-level behaviors
     IMGUI_API bool          ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags = 0);
-    IMGUI_API bool          DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_speed, const void* v_min, const void* v_max, const char* format, float power);
+    IMGUI_API bool          DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_speed, const void* v_min, const void* v_max, const char* format, float power, ImGuiDragFlags flags);
     IMGUI_API bool          SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* v, const void* v_min, const void* v_max, const char* format, float power, ImGuiSliderFlags flags, ImRect* out_grab_bb);
     IMGUI_API bool          SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend = 0.0f, float hover_visibility_delay = 0.0f);
     IMGUI_API bool          TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end = NULL);
@@ -1250,7 +1290,7 @@ namespace ImGui
     // Template functions are instantiated in imgui_widgets.cpp for a finite number of types. 
     // To use them externally (for custom widget) you may need an "extern template" statement in your code in order to link to existing instances and silence Clang warnings (see #2036).
     // e.g. " extern template IMGUI_API float RoundScalarWithFormatT<float, float>(const char* format, ImGuiDataType data_type, float v); "
-    template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API bool  DragBehaviorT(ImGuiDataType data_type, T* v, float v_speed, const T v_min, const T v_max, const char* format, float power);
+    template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API bool  DragBehaviorT(ImGuiDataType data_type, T* v, float v_speed, const T v_min, const T v_max, const char* format, float power, ImGuiDragFlags flags);
     template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API bool  SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, T* v, const T v_min, const T v_max, const char* format, float power, ImGuiSliderFlags flags, ImRect* out_grab_bb);
     template<typename T, typename FLOAT_T>                      IMGUI_API float SliderCalcRatioFromValueT(ImGuiDataType data_type, T v, T v_min, T v_max, float power, float linear_zero_pos);
     template<typename T, typename SIGNED_T>                     IMGUI_API T     RoundScalarWithFormatT(const char* format, ImGuiDataType data_type, T v);

imgui_widgets.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.65
+// dear imgui, v1.66b
 // (widgets code)
 
 /*
@@ -133,8 +133,9 @@ void ImGui::TextUnformatted(const char* text, const char* text_end)
     {
         // Long text!
         // Perform manual coarse clipping to optimize for long multi-line text
-        // From this point we will only compute the width of lines that are visible. Optimization only available when word-wrapping is disabled.
-        // We also don't vertically center the text within the line full height, which is unlikely to matter because we are likely the biggest and only item on the line.
+        // - From this point we will only compute the width of lines that are visible. Optimization only available when word-wrapping is disabled.
+        // - We also don't vertically center the text within the line full height, which is unlikely to matter because we are likely the biggest and only item on the line.
+        // - We use memchr(), pay attention that well optimized versions of those str/mem functions are much faster than a casually written loop.
         const char* line = text;
         const float line_height = GetTextLineHeight();
         const ImRect clip_rect = window->ClipRect;
@@ -153,7 +154,7 @@ void ImGui::TextUnformatted(const char* text, const char* text_end)
                     int lines_skipped = 0;
                     while (line < text_end && lines_skipped < lines_skippable)
                     {
-                        const char* line_end = strchr(line, '\n');
+                        const char* line_end = (const char*)memchr(line, '\n', text_end - line);
                         if (!line_end)
                             line_end = text_end;
                         line = line_end + 1;
@@ -169,15 +170,15 @@ void ImGui::TextUnformatted(const char* text, const char* text_end)
                 ImRect line_rect(pos, pos + ImVec2(FLT_MAX, line_height));
                 while (line < text_end)
                 {
-                    const char* line_end = strchr(line, '\n');
                     if (IsClippedEx(line_rect, 0, false))
                         break;
 
+                    const char* line_end = (const char*)memchr(line, '\n', text_end - line);
+                    if (!line_end)
+                        line_end = text_end;
                     const ImVec2 line_size = CalcTextSize(line, line_end, false);
                     text_size.x = ImMax(text_size.x, line_size.x);
                     RenderText(pos, line, line_end, false);
-                    if (!line_end)
-                        line_end = text_end;
                     line = line_end + 1;
                     line_rect.Min.y += line_height;
                     line_rect.Max.y += line_height;
@@ -188,7 +189,7 @@ void ImGui::TextUnformatted(const char* text, const char* text_end)
                 int lines_skipped = 0;
                 while (line < text_end)
                 {
-                    const char* line_end = strchr(line, '\n');
+                    const char* line_end = (const char*)memchr(line, '\n', text_end - line);
                     if (!line_end)
                         line_end = text_end;
                     line = line_end + 1;
@@ -626,7 +627,7 @@ bool ImGui::ArrowButtonEx(const char* str_id, ImGuiDir dir, ImVec2 size, ImGuiBu
     const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
     RenderNavHighlight(bb, id);
     RenderFrame(bb.Min, bb.Max, col, true, g.Style.FrameRounding);
-    RenderArrow(bb.Min + ImVec2(ImMax(0.0f, size.x - g.FontSize - g.Style.FramePadding.x), ImMax(0.0f, size.y - g.FontSize - g.Style.FramePadding.y)), dir);
+    RenderArrow(bb.Min + ImVec2(ImMax(0.0f, (size.x - g.FontSize) * 0.5f), ImMax(0.0f, (size.y - g.FontSize) * 0.5f)), dir);
 
     return pressed;
 }
@@ -838,7 +839,7 @@ bool ImGui::ImageButton(ImTextureID user_texture_id, const ImVec2& size, const I
 
     // Default to using texture ID as ID. User can still push string/integer prefixes.
     // We could hash the size/uv to create a unique ID but that would prevent the user from animating UV.
-    PushID((void*)user_texture_id);
+    PushID((void*)(intptr_t)user_texture_id);
     const ImGuiID id = window->GetID("#image");
     PopID();
 
@@ -1152,7 +1153,7 @@ void ImGui::Separator()
     window->DrawList->AddLine(bb.Min, ImVec2(bb.Max.x,bb.Min.y), GetColorU32(ImGuiCol_Separator));
 
     if (g.LogEnabled)
-        LogRenderedText(NULL, IM_NEWLINE "--------------------------------");
+        LogRenderedText(&bb.Min, "--------------------------------");
 
     if (window->DC.ColumnsSet)
     {
@@ -1240,7 +1241,7 @@ bool ImGui::SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float
 
 
 //-------------------------------------------------------------------------
-// [SECTION] Widgets: Combo Box
+// [SECTION] Widgets: ComboBox
 //-------------------------------------------------------------------------
 // - BeginCombo()
 // - EndCombo()
@@ -1705,33 +1706,39 @@ TYPE ImGui::RoundScalarWithFormatT(const char* format, ImGuiDataType data_type,
 
 // This is called by DragBehavior() when the widget is active (held by mouse or being manipulated with Nav controls)
 template<typename TYPE, typename SIGNEDTYPE, typename FLOATTYPE>
-bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const TYPE v_min, const TYPE v_max, const char* format, float power)
+bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const TYPE v_min, const TYPE v_max, const char* format, float power, ImGuiDragFlags flags)
 {
     ImGuiContext& g = *GImGui;
+    const ImGuiAxis axis = (flags & ImGuiDragFlags_Vertical) ? ImGuiAxis_Y : ImGuiAxis_X;
+    const bool is_decimal = (data_type == ImGuiDataType_Float) || (data_type == ImGuiDataType_Double);
+    const bool has_min_max = (v_min != v_max);
 
     // Default tweak speed
-    bool has_min_max = (v_min != v_max) && (v_max - v_max < FLT_MAX);
-    if (v_speed == 0.0f && has_min_max)
+    if (v_speed == 0.0f && has_min_max && (v_max - v_min < FLT_MAX))
         v_speed = (float)((v_max - v_min) * g.DragSpeedDefaultRatio);
 
     // Inputs accumulates into g.DragCurrentAccum, which is flushed into the current value as soon as it makes a difference with our precision settings
     float adjust_delta = 0.0f;
     if (g.ActiveIdSource == ImGuiInputSource_Mouse && IsMousePosValid() && g.IO.MouseDragMaxDistanceSqr[0] > 1.0f*1.0f)
     {
-        adjust_delta = g.IO.MouseDelta.x;
+        adjust_delta = g.IO.MouseDelta[axis];
         if (g.IO.KeyAlt)
-            adjust_delta *= 1.0f/100.0f;
+            adjust_delta *= 1.0f / 100.0f;
         if (g.IO.KeyShift)
             adjust_delta *= 10.0f;
     }
     else if (g.ActiveIdSource == ImGuiInputSource_Nav)
     {
-        int decimal_precision = (data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double) ? ImParseFormatPrecision(format, 3) : 0;
-        adjust_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard|ImGuiNavDirSourceFlags_PadDPad, ImGuiInputReadMode_RepeatFast, 1.0f/10.0f, 10.0f).x;
+        int decimal_precision = is_decimal ? ImParseFormatPrecision(format, 3) : 0;
+        adjust_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard | ImGuiNavDirSourceFlags_PadDPad, ImGuiInputReadMode_RepeatFast, 1.0f / 10.0f, 10.0f)[axis];
         v_speed = ImMax(v_speed, GetMinimumStepAtDecimalPrecision(decimal_precision));
     }
     adjust_delta *= v_speed;
 
+    // For vertical drag we currently assume that Up=higher value (like we do with vertical sliders). This may become a parameter.
+    if (axis == ImGuiAxis_Y)
+        adjust_delta = -adjust_delta;
+
     // Clear current value on activation
     // Avoid altering values and clamping when we are _already_ past the limits and heading in the same direction, so e.g. if range is 0..255, current value is 300 and we are pushing to the right side, keep the 300.
     bool is_just_activated = g.ActiveIdIsJustActivated;
@@ -1753,7 +1760,7 @@ bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const
     TYPE v_cur = *v;
     FLOATTYPE v_old_ref_for_accum_remainder = (FLOATTYPE)0.0f;
 
-    const bool is_power = (power != 1.0f && (data_type == ImGuiDataType_Float || data_type == ImGuiDataType_Double) && has_min_max);
+    const bool is_power = (power != 1.0f && is_decimal && has_min_max && (v_max - v_min < FLT_MAX));
     if (is_power)
     {
         // Offset + round to user desired precision, with a curve on the v_min..v_max range to get more precision on one side of the range
@@ -1786,12 +1793,12 @@ bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const
     if (v_cur == (TYPE)-0)
         v_cur = (TYPE)0;
 
-    // Clamp values (handle overflow/wrap-around)
+    // Clamp values (+ handle overflow/wrap-around for integer types)
     if (*v != v_cur && has_min_max)
     {
-        if (v_cur < v_min || (v_cur > *v && adjust_delta < 0.0f))
+        if (v_cur < v_min || (v_cur > *v && adjust_delta < 0.0f && !is_decimal))
             v_cur = v_min;
-        if (v_cur > v_max || (v_cur < *v && adjust_delta > 0.0f))
+        if (v_cur > v_max || (v_cur < *v && adjust_delta > 0.0f && !is_decimal))
             v_cur = v_max;
     }
 
@@ -1802,7 +1809,7 @@ bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const
     return true;
 }
 
-bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_speed, const void* v_min, const void* v_max, const char* format, float power)
+bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_speed, const void* v_min, const void* v_max, const char* format, float power, ImGuiDragFlags flags)
 {
     ImGuiContext& g = *GImGui;
     if (g.ActiveId == id)
@@ -1817,12 +1824,12 @@ bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_s
 
     switch (data_type)
     {
-    case ImGuiDataType_S32:    return DragBehaviorT<ImS32, ImS32, float >(data_type, (ImS32*)v,  v_speed, v_min ? *(const ImS32* )v_min : IM_S32_MIN, v_max ? *(const ImS32* )v_max : IM_S32_MAX, format, power);
-    case ImGuiDataType_U32:    return DragBehaviorT<ImU32, ImS32, float >(data_type, (ImU32*)v,  v_speed, v_min ? *(const ImU32* )v_min : IM_U32_MIN, v_max ? *(const ImU32* )v_max : IM_U32_MAX, format, power);
-    case ImGuiDataType_S64:    return DragBehaviorT<ImS64, ImS64, double>(data_type, (ImS64*)v,  v_speed, v_min ? *(const ImS64* )v_min : IM_S64_MIN, v_max ? *(const ImS64* )v_max : IM_S64_MAX, format, power);
-    case ImGuiDataType_U64:    return DragBehaviorT<ImU64, ImS64, double>(data_type, (ImU64*)v,  v_speed, v_min ? *(const ImU64* )v_min : IM_U64_MIN, v_max ? *(const ImU64* )v_max : IM_U64_MAX, format, power);
-    case ImGuiDataType_Float:  return DragBehaviorT<float, float, float >(data_type, (float*)v,  v_speed, v_min ? *(const float* )v_min : -FLT_MAX,   v_max ? *(const float* )v_max : FLT_MAX,    format, power);
-    case ImGuiDataType_Double: return DragBehaviorT<double,double,double>(data_type, (double*)v, v_speed, v_min ? *(const double*)v_min : -DBL_MAX,   v_max ? *(const double*)v_max : DBL_MAX,    format, power);
+    case ImGuiDataType_S32:    return DragBehaviorT<ImS32, ImS32, float >(data_type, (ImS32*)v,  v_speed, v_min ? *(const ImS32* )v_min : IM_S32_MIN, v_max ? *(const ImS32* )v_max : IM_S32_MAX, format, power, flags);
+    case ImGuiDataType_U32:    return DragBehaviorT<ImU32, ImS32, float >(data_type, (ImU32*)v,  v_speed, v_min ? *(const ImU32* )v_min : IM_U32_MIN, v_max ? *(const ImU32* )v_max : IM_U32_MAX, format, power, flags);
+    case ImGuiDataType_S64:    return DragBehaviorT<ImS64, ImS64, double>(data_type, (ImS64*)v,  v_speed, v_min ? *(const ImS64* )v_min : IM_S64_MIN, v_max ? *(const ImS64* )v_max : IM_S64_MAX, format, power, flags);
+    case ImGuiDataType_U64:    return DragBehaviorT<ImU64, ImS64, double>(data_type, (ImU64*)v,  v_speed, v_min ? *(const ImU64* )v_min : IM_U64_MIN, v_max ? *(const ImU64* )v_max : IM_U64_MAX, format, power, flags);
+    case ImGuiDataType_Float:  return DragBehaviorT<float, float, float >(data_type, (float*)v,  v_speed, v_min ? *(const float* )v_min : -FLT_MAX,   v_max ? *(const float* )v_max : FLT_MAX,    format, power, flags);
+    case ImGuiDataType_Double: return DragBehaviorT<double,double,double>(data_type, (double*)v, v_speed, v_min ? *(const double*)v_min : -DBL_MAX,   v_max ? *(const double*)v_max : DBL_MAX,    format, power, flags);
     case ImGuiDataType_COUNT:  break;
     }
     IM_ASSERT(0);
@@ -1880,11 +1887,14 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* v, floa
         }
     }
     if (start_text_input || (g.ActiveId == id && g.ScalarAsInputTextId == id))
+    {
+        FocusableItemUnregister(window);
         return InputScalarAsWidgetReplacement(frame_bb, id, label, data_type, v, format);
+    }
 
     // Actual drag behavior
     ItemSize(total_bb, style.FramePadding.y);
-    const bool value_changed = DragBehavior(id, data_type, v, v_speed, v_min, v_max, format, power);
+    const bool value_changed = DragBehavior(id, data_type, v, v_speed, v_min, v_max, format, power, ImGuiDragFlags_None);
     if (value_changed)
         MarkItemEdited(id);
 
@@ -2076,20 +2086,20 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
     ImGuiContext& g = *GImGui;
     const ImGuiStyle& style = g.Style;
 
-    const bool is_horizontal = (flags & ImGuiSliderFlags_Vertical) == 0;
+    const ImGuiAxis axis = (flags & ImGuiSliderFlags_Vertical) ? ImGuiAxis_Y : ImGuiAxis_X;
     const bool is_decimal = (data_type == ImGuiDataType_Float) || (data_type == ImGuiDataType_Double);
     const bool is_power = (power != 1.0f) && is_decimal;
 
     const float grab_padding = 2.0f;
-    const float slider_sz = is_horizontal ? (bb.GetWidth() - grab_padding * 2.0f) : (bb.GetHeight() - grab_padding * 2.0f);
+    const float slider_sz = (bb.Max[axis] - bb.Min[axis]) - grab_padding * 2.0f;
     float grab_sz = style.GrabMinSize;
     SIGNEDTYPE v_range = (v_min < v_max ? v_max - v_min : v_min - v_max);
     if (!is_decimal && v_range >= 0)                                             // v_range < 0 may happen on integer overflows
         grab_sz = ImMax((float)(slider_sz / (v_range + 1)), style.GrabMinSize);  // For integer sliders: if possible have the grab size represent 1 unit
     grab_sz = ImMin(grab_sz, slider_sz);
     const float slider_usable_sz = slider_sz - grab_sz;
-    const float slider_usable_pos_min = (is_horizontal ? bb.Min.x : bb.Min.y) + grab_padding + grab_sz*0.5f;
-    const float slider_usable_pos_max = (is_horizontal ? bb.Max.x : bb.Max.y) - grab_padding - grab_sz*0.5f;
+    const float slider_usable_pos_min = bb.Min[axis] + grab_padding + grab_sz*0.5f;
+    const float slider_usable_pos_max = bb.Max[axis] - grab_padding - grab_sz*0.5f;
 
     // For power curve sliders that cross over sign boundary we want the curve to be symmetric around 0.0f
     float linear_zero_pos;   // 0.0->1.0f
@@ -2120,9 +2130,9 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
             }
             else
             {
-                const float mouse_abs_pos = is_horizontal ? g.IO.MousePos.x : g.IO.MousePos.y;
+                const float mouse_abs_pos = g.IO.MousePos[axis];
                 clicked_t = (slider_usable_sz > 0.0f) ? ImClamp((mouse_abs_pos - slider_usable_pos_min) / slider_usable_sz, 0.0f, 1.0f) : 0.0f;
-                if (!is_horizontal)
+                if (axis == ImGuiAxis_Y)
                     clicked_t = 1.0f - clicked_t;
                 set_new_value = true;
             }
@@ -2130,7 +2140,7 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
         else if (g.ActiveIdSource == ImGuiInputSource_Nav)
         {
             const ImVec2 delta2 = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard | ImGuiNavDirSourceFlags_PadDPad, ImGuiInputReadMode_RepeatFast, 0.0f, 0.0f);
-            float delta = is_horizontal ? delta2.x : -delta2.y;
+            float delta = (axis == ImGuiAxis_X) ? delta2.x : -delta2.y;
             if (g.NavActivatePressedId == id && !g.ActiveIdIsJustActivated)
             {
                 ClearActiveID();
@@ -2222,10 +2232,10 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
 
     // Output grab position so it can be displayed by the caller
     float grab_t = SliderCalcRatioFromValueT<TYPE,FLOATTYPE>(data_type, *v, v_min, v_max, power, linear_zero_pos);
-    if (!is_horizontal)
+    if (axis == ImGuiAxis_Y)
         grab_t = 1.0f - grab_t;
     const float grab_pos = ImLerp(slider_usable_pos_min, slider_usable_pos_max, grab_t);
-    if (is_horizontal)
+    if (axis == ImGuiAxis_X)
         *out_grab_bb = ImRect(grab_pos - grab_sz*0.5f, bb.Min.y + grab_padding, grab_pos + grab_sz*0.5f, bb.Max.y - grab_padding);
     else
         *out_grab_bb = ImRect(bb.Min.x + grab_padding, grab_pos - grab_sz*0.5f, bb.Max.x - grab_padding, grab_pos + grab_sz*0.5f);
@@ -2311,7 +2321,10 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* v, co
         }
     }
     if (start_text_input || (g.ActiveId == id && g.ScalarAsInputTextId == id))
+    {
+        FocusableItemUnregister(window);
         return InputScalarAsWidgetReplacement(frame_bb, id, label, data_type, v, format);
+    }
 
     ItemSize(total_bb, style.FramePadding.y);
 
@@ -2389,10 +2402,12 @@ bool ImGui::SliderFloat4(const char* label, float v[4], float v_min, float v_max
     return SliderScalarN(label, ImGuiDataType_Float, v, 4, &v_min, &v_max, format, power);
 }
 
-bool ImGui::SliderAngle(const char* label, float* v_rad, float v_degrees_min, float v_degrees_max)
+bool ImGui::SliderAngle(const char* label, float* v_rad, float v_degrees_min, float v_degrees_max, const char* format)
 {
+    if (format == NULL)
+        format = "%.0f deg";
     float v_deg = (*v_rad) * 360.0f / (2*IM_PI);
-    bool value_changed = SliderFloat(label, &v_deg, v_degrees_min, v_degrees_max, "%.0f deg", 1.0f);
+    bool value_changed = SliderFloat(label, &v_deg, v_degrees_min, v_degrees_max, format, 1.0f);
     *v_rad = v_deg * (2*IM_PI) / 360.0f;
     return value_changed;
 }
@@ -2580,8 +2595,8 @@ int ImParseFormatPrecision(const char* fmt, int default_precision)
     return (precision == INT_MAX) ? default_precision : precision;
 }
 
-// Create text input in place of a slider (when CTRL+Clicking on slider)
-// FIXME: Logic is messy and confusing.
+// Create text input in place of an active drag/slider (used when doing a CTRL+Click on drag/slider widgets)
+// FIXME: Logic is awkward and confusing. This should be reworked to facilitate using in other situations.
 bool ImGui::InputScalarAsWidgetReplacement(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* data_ptr, const char* format)
 {
     ImGuiContext& g = *GImGui;
@@ -2590,9 +2605,8 @@ bool ImGui::InputScalarAsWidgetReplacement(const ImRect& bb, ImGuiID id, const c
     // Our replacement widget will override the focus ID (registered previously to allow for a TAB focus to happen)
     // On the first frame, g.ScalarAsInputTextId == 0, then on subsequent frames it becomes == id
     SetActiveID(g.ScalarAsInputTextId, window);
-    g.ActiveIdAllowNavDirFlags = (1 << ImGuiDir_Up) | (1 << ImGuiDir_Down);
     SetHoveredID(0);
-    FocusableItemUnregister(window);
+    g.ActiveIdAllowNavDirFlags = (1 << ImGuiDir_Up) | (1 << ImGuiDir_Down);
 
     char fmt_buf[32];
     char data_buf[32];
@@ -2843,7 +2857,7 @@ static ImVec2 InputTextCalcTextSizeW(const ImWchar* text_begin, const ImWchar* t
         if (c == '\r')
             continue;
 
-        const float char_width = font->GetCharAdvance((unsigned short)c) * scale;
+        const float char_width = font->GetCharAdvance((ImWchar)c) * scale;
         line_width += char_width;
     }
 
@@ -2904,7 +2918,7 @@ static void STB_TEXTEDIT_DELETECHARS(STB_TEXTEDIT_STRING* obj, int pos, int n)
     obj->CurLenA -= ImTextCountUtf8BytesFromStr(dst, dst + n);
     obj->CurLenW -= n;
 
-    // Offset remaining text
+    // Offset remaining text (FIXME-OPT: Use memmove)
     const ImWchar* src = obj->TextW.Data + pos + n;
     while (ImWchar c = *src++)
         *dst++ = c;
@@ -3092,7 +3106,7 @@ static bool InputTextFilterCharacter(unsigned int* p_char, ImGuiInputTextFlags f
 //   This is so we can easily call InputText() on static arrays using ARRAYSIZE() and to match 
 //   Note that in std::string world, capacity() would omit 1 byte used by the zero-terminator.
 // - When active, hold on a privately held copy of the text (and apply back to 'buf'). So changing 'buf' while the InputText is active has no effect.
-// - If you want to use ImGui::InputText() with std::string, see misc/stl/imgui_stl.h
+// - If you want to use ImGui::InputText() with std::string, see misc/cpp/imgui_stdlib.h
 // (FIXME: Rather messy function partly because we are doing UTF8 > u16 > UTF8 conversions on the go to more easily handle stb_textedit calls. Ideally we should stay in UTF-8 all the time. See https://github.com/nothings/stb/issues/188)
 bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* callback_user_data)
 {
@@ -3402,7 +3416,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
             {
                 // Filter pasted buffer
                 const int clipboard_len = (int)strlen(clipboard);
-                ImWchar* clipboard_filtered = (ImWchar*)ImGui::MemAlloc((clipboard_len+1) * sizeof(ImWchar));
+                ImWchar* clipboard_filtered = (ImWchar*)MemAlloc((clipboard_len+1) * sizeof(ImWchar));
                 int clipboard_filtered_len = 0;
                 for (const char* s = clipboard; *s; )
                 {
@@ -3420,7 +3434,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
                     stb_textedit_paste(&edit_state, &edit_state.StbState, clipboard_filtered, clipboard_filtered_len);
                     edit_state.CursorFollow = true;
                 }
-                ImGui::MemFree(clipboard_filtered);
+                MemFree(clipboard_filtered);
             }
         }
     }
@@ -3615,6 +3629,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
             // In multi-line mode, we never exit the loop until all lines are counted, so add one extra to the searches_remaining counter.
             searches_remaining += is_multiline ? 1 : 0;
             int line_count = 0;
+            //for (const ImWchar* s = text_begin; (s = (const ImWchar*)wcschr((const wchar_t*)s, (wchar_t)'\n')) != NULL; s++)  // FIXME-OPT: Could use this when wchar_t are 16-bits
             for (const ImWchar* s = text_begin; *s != 0; s++)
                 if (*s == '\n')
                 {
@@ -3689,6 +3704,8 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
                     break;
                 if (rect_pos.y < clip_rect.y)
                 {
+                    //p = (const ImWchar*)wmemchr((const wchar_t*)p, '\n', text_selected_end - p);  // FIXME-OPT: Could use this when wchar_t are 16-bits
+                    //p = p ? p + 1 : text_selected_end;
                     while (p < text_selected_end)
                         if (*p++ == '\n')
                             break;
@@ -3696,7 +3713,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
                 else
                 {
                     ImVec2 rect_size = InputTextCalcTextSizeW(p, text_selected_end, &p, NULL, true);
-                    if (rect_size.x <= 0.0f) rect_size.x = (float)(int)(g.Font->GetCharAdvance((unsigned short)' ') * 0.50f); // So we can see selected empty lines
+                    if (rect_size.x <= 0.0f) rect_size.x = (float)(int)(g.Font->GetCharAdvance((ImWchar)' ') * 0.50f); // So we can see selected empty lines
                     ImRect rect(rect_pos + ImVec2(0.0f, bg_offy_up - g.FontSize), rect_pos +ImVec2(rect_size.x, bg_offy_dn));
                     rect.ClipWith(clip_rect);
                     if (rect.Overlaps(clip_rect))
@@ -3921,7 +3938,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flag
             if (label != label_display_end)
             {
                 TextUnformatted(label, label_display_end);
-                Separator();
+                Spacing();
             }
             ImGuiColorEditFlags picker_flags_to_forward = ImGuiColorEditFlags__DataTypeMask | ImGuiColorEditFlags__PickerMask | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaBar;
             ImGuiColorEditFlags picker_flags = (flags_untouched & picker_flags_to_forward) | ImGuiColorEditFlags__InputsMask | ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_AlphaPreviewHalf;
@@ -4527,38 +4544,38 @@ void ImGui::ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags fl
 {
     bool allow_opt_picker = !(flags & ImGuiColorEditFlags__PickerMask);
     bool allow_opt_alpha_bar = !(flags & ImGuiColorEditFlags_NoAlpha) && !(flags & ImGuiColorEditFlags_AlphaBar);
-    if ((!allow_opt_picker && !allow_opt_alpha_bar) || !ImGui::BeginPopup("context"))
+    if ((!allow_opt_picker && !allow_opt_alpha_bar) || !BeginPopup("context"))
         return;
     ImGuiContext& g = *GImGui;
     if (allow_opt_picker)
     {
-        ImVec2 picker_size(g.FontSize * 8, ImMax(g.FontSize * 8 - (ImGui::GetFrameHeight() + g.Style.ItemInnerSpacing.x), 1.0f)); // FIXME: Picker size copied from main picker function
-        ImGui::PushItemWidth(picker_size.x);
+        ImVec2 picker_size(g.FontSize * 8, ImMax(g.FontSize * 8 - (GetFrameHeight() + g.Style.ItemInnerSpacing.x), 1.0f)); // FIXME: Picker size copied from main picker function
+        PushItemWidth(picker_size.x);
         for (int picker_type = 0; picker_type < 2; picker_type++)
         {
             // Draw small/thumbnail version of each picker type (over an invisible button for selection)
-            if (picker_type > 0) ImGui::Separator();
-            ImGui::PushID(picker_type);
+            if (picker_type > 0) Separator();
+            PushID(picker_type);
             ImGuiColorEditFlags picker_flags = ImGuiColorEditFlags_NoInputs|ImGuiColorEditFlags_NoOptions|ImGuiColorEditFlags_NoLabel|ImGuiColorEditFlags_NoSidePreview|(flags & ImGuiColorEditFlags_NoAlpha);
             if (picker_type == 0) picker_flags |= ImGuiColorEditFlags_PickerHueBar;
             if (picker_type == 1) picker_flags |= ImGuiColorEditFlags_PickerHueWheel;
-            ImVec2 backup_pos = ImGui::GetCursorScreenPos();
-            if (ImGui::Selectable("##selectable", false, 0, picker_size)) // By default, Selectable() is closing popup
+            ImVec2 backup_pos = GetCursorScreenPos();
+            if (Selectable("##selectable", false, 0, picker_size)) // By default, Selectable() is closing popup
                 g.ColorEditOptions = (g.ColorEditOptions & ~ImGuiColorEditFlags__PickerMask) | (picker_flags & ImGuiColorEditFlags__PickerMask);
-            ImGui::SetCursorScreenPos(backup_pos);
+            SetCursorScreenPos(backup_pos);
             ImVec4 dummy_ref_col;
             memcpy(&dummy_ref_col.x, ref_col, sizeof(float) * (picker_flags & ImGuiColorEditFlags_NoAlpha ? 3 : 4));
-            ImGui::ColorPicker4("##dummypicker", &dummy_ref_col.x, picker_flags);
-            ImGui::PopID();
+            ColorPicker4("##dummypicker", &dummy_ref_col.x, picker_flags);
+            PopID();
         }
-        ImGui::PopItemWidth();
+        PopItemWidth();
     }
     if (allow_opt_alpha_bar)
     {
-        if (allow_opt_picker) ImGui::Separator();
-        ImGui::CheckboxFlags("Alpha Bar", (unsigned int*)&g.ColorEditOptions, ImGuiColorEditFlags_AlphaBar);
+        if (allow_opt_picker) Separator();
+        CheckboxFlags("Alpha Bar", (unsigned int*)&g.ColorEditOptions, ImGuiColorEditFlags_AlphaBar);
     }
-    ImGui::EndPopup();
+    EndPopup();
 }
 
 //-------------------------------------------------------------------------
@@ -4961,7 +4978,7 @@ bool ImGui::CollapsingHeader(const char* label, bool* p_open, ImGuiTreeNodeFlags
 // - Selectable()
 //-------------------------------------------------------------------------
 
-// Tip: pass an empty label (e.g. "##dummy") then you can use the space to draw other text or image.
+// Tip: pass a non-visible label (e.g. "##dummy") then you can use the space to draw other text or image.
 // But you need to make sure the ID is unique, e.g. enclose calls in PushID/PopID or use ##unique_id.
 bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags flags, const ImVec2& size_arg)
 {
@@ -5072,9 +5089,9 @@ bool ImGui::Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags
 // - ListBoxFooter()
 //-------------------------------------------------------------------------
 
-// FIXME: Rename to BeginListBox()
+// FIXME: In principle this function should be called BeginListBox(). We should rename it after re-evaluating if we want to keep the same signature.
 // Helper to calculate the size of a listbox and display a label on the right.
-// Tip: To have a list filling the entire window width, PushItemWidth(-1) and pass an empty label "##empty"
+// Tip: To have a list filling the entire window width, PushItemWidth(-1) and pass an non-visible label e.g. "##empty"
 bool ImGui::ListBoxHeader(const char* label, const ImVec2& size_arg)
 {
     ImGuiWindow* window = GetCurrentWindow();
@@ -5100,24 +5117,26 @@ bool ImGui::ListBoxHeader(const char* label, const ImVec2& size_arg)
     return true;
 }
 
-// FIXME: Rename to BeginListBox()
+// FIXME: In principle this function should be called EndListBox(). We should rename it after re-evaluating if we want to keep the same signature.
 bool ImGui::ListBoxHeader(const char* label, int items_count, int height_in_items)
 {
-    // Size default to hold ~7 items. Fractional number of items helps seeing that we can scroll down/up without looking at scrollbar.
-    // We don't add +0.40f if items_count <= height_in_items. It is slightly dodgy, because it means a dynamic list of items will make the widget resize occasionally when it crosses that size.
+    // Size default to hold ~7.25 items.
+    // We add +25% worth of item height to allow the user to see at a glance if there are more items up/down, without looking at the scrollbar.
+    // We don't add this extra bit if items_count <= height_in_items. It is slightly dodgy, because it means a dynamic list of items will make the widget resize occasionally when it crosses that size.
     // I am expecting that someone will come and complain about this behavior in a remote future, then we can advise on a better solution.
     if (height_in_items < 0)
         height_in_items = ImMin(items_count, 7);
-    float height_in_items_f = height_in_items < items_count ? (height_in_items + 0.40f) : (height_in_items + 0.00f);
+    const ImGuiStyle& style = GetStyle();
+    float height_in_items_f = (height_in_items < items_count) ? (height_in_items + 0.25f) : (height_in_items + 0.00f);
 
     // We include ItemSpacing.y so that a list sized for the exact number of items doesn't make a scrollbar appears. We could also enforce that by passing a flag to BeginChild().
     ImVec2 size;
     size.x = 0.0f;
-    size.y = GetTextLineHeightWithSpacing() * height_in_items_f + GetStyle().ItemSpacing.y;
+    size.y = GetTextLineHeightWithSpacing() * height_in_items_f + style.FramePadding.y * 2.0f;
     return ListBoxHeader(label, size);
 }
 
-// FIXME: Rename to EndListBox()
+// FIXME: In principle this function should be called EndListBox(). We should rename it after re-evaluating if we want to keep the same signature.
 void ImGui::ListBoxFooter()
 {
     ImGuiWindow* parent_window = GetCurrentWindow()->ParentWindow;
@@ -5448,7 +5467,7 @@ void ImGui::EndMainMenuBar()
     // When the user has left the menu layer (typically: closed menus through activation of an item), we restore focus to the previous window
     ImGuiContext& g = *GImGui;
     if (g.CurrentWindow == g.NavWindow && g.NavLayer == 0)
-        FocusFrontMostActiveWindowIgnoringOne(g.NavWindow);
+        FocusPreviousWindowIgnoringOne(g.NavWindow);
 
     End();
 }
@@ -5547,7 +5566,7 @@ bool ImGui::BeginMenu(const char* label, bool enabled)
         // Menu inside an horizontal menu bar
         // Selectable extend their highlight by half ItemSpacing in each direction.
         // For ChildMenu, the popup position will be overwritten by the call to FindBestWindowPosForPopup() in Begin()
-        popup_pos = ImVec2(pos.x - window->WindowPadding.x, pos.y - style.FramePadding.y + window->MenuBarHeight());
+        popup_pos = ImVec2(pos.x - 1.0f - (float)(int)(style.ItemSpacing.x * 0.5f), pos.y - style.FramePadding.y + window->MenuBarHeight());
         window->DC.CursorPos.x += (float)(int)(style.ItemSpacing.x * 0.5f);
         PushStyleVar(ImGuiStyleVar_ItemSpacing, style.ItemSpacing * 2.0f);
         float w = label_size.x;

misc/README.txt

@@ -0,0 +1,18 @@
+
+misc/cpp/
+  InputText() wrappers for C++ standard library (STL) type: std::string.
+  This is also an example of how you may wrap your own similar types.
+
+misc/fonts/
+  Fonts loading/merging instructions (e.g. How to handle glyph ranges, how to merge icons fonts).
+  Command line tool "binary_to_compressed_c" to create compressed arrays to embed data in source code.
+  Suggested fonts and links.
+
+misc/freetype/
+  Font atlas builder/rasterizer using FreeType instead of stb_truetype.
+  Benefit from better FreeType rasterization, in particular for small fonts.
+
+misc/natvis/
+  Natvis file to describe dear imgui types in the Visual Studio debugger. 
+  With this, types like ImVector<> will be displayed nicely in the debugger. 
+  You can include this file a Visual Studio project file, or install it in Visual Studio folder.

misc/cpp/README.txt

@@ -0,0 +1,10 @@
+
+imgui_stdlib.h + imgui_stdlib.cpp
+  InputText() wrappers for C++ standard library (STL) type: std::string.
+  This is also an example of how you may wrap your own similar types.
+
+imgui_scoped.h 
+  [Experimental, not currently in main repository]
+  Additional header file with some RAII-style wrappers for common ImGui functions.
+  Try by merging: https://github.com/ocornut/imgui/pull/2197
+  Discuss at: https://github.com/ocornut/imgui/issues/2096

misc/cpp/imgui_stdlib.cpp

@@ -1,4 +1,4 @@
-// imgui_stl.cpp
+// imgui_stdlib.cpp
 // Wrappers for C++ standard library (STL) types (std::string, etc.)
 // This is also an example of how you may wrap your own similar types.
 
@@ -6,8 +6,11 @@
 // - std::string support is only guaranteed to work from C++11. 
 //   If you try to use it pre-C++11, please share your findings (w/ info about compiler/architecture)
 
+// Changelog:
+// - v0.10: Initial version. Added InputText() / InputTextMultiline() calls with std::string
+
 #include "imgui.h"
-#include "imgui_stl.h"
+#include "imgui_stdlib.h"
 
 struct InputTextCallback_UserData
 {
@@ -22,6 +25,7 @@ static int InputTextCallback(ImGuiInputTextCallbackData* data)
     if (data->EventFlag == ImGuiInputTextFlags_CallbackResize)
     {
         // Resize string callback
+        // If for some reason we refuse the new length (BufTextLen) and/or capacity (BufSize) we need to set them back to what we want.
         std::string* str = user_data->Str;
         IM_ASSERT(data->Buf == str->c_str());
         str->resize(data->BufTextLen);

misc/cpp/imgui_stdlib.h

@@ -1,4 +1,4 @@
-// imgui_stl.h
+// imgui_stdlib.h
 // Wrappers for C++ standard library (STL) types (std::string, etc.)
 // This is also an example of how you may wrap your own similar types.
 

misc/fonts/README.txt

@@ -1,9 +1,11 @@
 
-The code in imgui.cpp embeds a copy of 'ProggyClean.ttf' (by Tristan Grimmer) that is used by default.
-We embed the font in source code so you can use Dear ImGui without any file system access.
+The code in imgui.cpp embeds a copy of 'ProggyClean.ttf' (by Tristan Grimmer),
+a 13 pixels high, pixel-perfect font used by default.
+We embed it font in source code so you can use Dear ImGui without any file system access.
+
 You may also load external .TTF/.OTF files. 
 The files in this folder are suggested fonts, provided as a convenience.
-(Note: .OTF support in stb_truetype.h currently doesn't appear to load every font)
+(Note: .OTF support in imstb_truetype.h currently doesn't appear to load every font)
 
 Fonts are rasterized in a single texture at the time of calling either of io.Fonts->GetTexDataAsAlpha8()/GetTexDataAsRGBA32()/Build().
 Also read dear imgui FAQ in imgui.cpp!
@@ -11,6 +13,7 @@ Also read dear imgui FAQ in imgui.cpp!
 If you have other loading/merging/adding fonts, you can post on the Dear ImGui "Getting Started" forum:
   https://discourse.dearimgui.org/c/getting-started
 
+
 ---------------------------------------
  INDEX:
 ---------------------------------------
@@ -29,245 +32,279 @@ If you have other loading/merging/adding fonts, you can post on the Dear ImGui "
  README FIRST / FAQ
 ---------------------------------------
 
- - You can use the style editor ImGui::ShowStyleEditor() to browse your fonts and understand what's going on if you have an issue.
- - Make sure your font ranges data are persistent (available during the call to GetTexDataAsAlpha8()/GetTexDataAsRGBA32()/Build().
- - Use C++11 u8"my text" syntax to encode literal strings as UTF-8. e.g.:
-       u8"hello"
-       u8"こんにちは"   // this will be encoded as UTF-8
- - If you want to include a backslash \ character in your string literal, you need to double them e.g. "folder\\filename".
- - Please use the Discourse forum (https://discourse.dearimgui.org) and not the Github issue tracker.
+- You can use the style editor ImGui::ShowStyleEditor() to browse your fonts and understand what's going on if you have an issue.
+- Make sure your font ranges data are persistent (available during the call to GetTexDataAsAlpha8()/GetTexDataAsRGBA32()/Build().
+- Use C++11 u8"my text" syntax to encode literal strings as UTF-8. e.g.:
+      u8"hello"
+      u8"こんにちは"   // this will be encoded as UTF-8
+- If you want to include a backslash \ character in your string literal, you need to double them e.g. "folder\\filename".
+- Please use the Discourse forum (https://discourse.dearimgui.org) and not the Github issue tracker for basic font loading questions.
 
 
 ---------------------------------------
  USING ICONS
 ---------------------------------------
 
- Using an icon font (such as FontAwesome: http://fontawesome.io) is an easy and practical way to use icons in your ImGui application.
- A common pattern is to merge the icon font within your main font, so you can embed icons directly from your strings without 
- having to change fonts back and forth.
+Using an icon font (such as FontAwesome: http://fontawesome.io or OpenFontIcons. https://github.com/traverseda/OpenFontIcons) 
+is an easy and practical way to use icons in your Dear ImGui application.
+A common pattern is to merge the icon font within your main font, so you can embed icons directly from your strings without 
+having to change fonts back and forth.
 
- To refer to the icon UTF-8 codepoints from your C++ code, you may use those headers files created by Juliette Foucaut:
-   https://github.com/juliettef/IconFontCppHeaders
+To refer to the icon UTF-8 codepoints from your C++ code, you may use those headers files created by Juliette Foucaut:
+  https://github.com/juliettef/IconFontCppHeaders
 
- The C++11 version of those files uses the u8"" utf-8 encoding syntax + \u
-   #define ICON_FA_SEARCH  u8"\uf002"
- The pre-C++11 version has the values directly encoded as utf-8:
-   #define ICON_FA_SEARCH  "\xEF\x80\x82"
+The C++11 version of those files uses the u8"" utf-8 encoding syntax + \u
+  #define ICON_FA_SEARCH  u8"\uf002"
+The pre-C++11 version has the values directly encoded as utf-8:
+  #define ICON_FA_SEARCH  "\xEF\x80\x82"
 
- Example:
+Example Setup:
 
-    // Merge icons into default tool font
-   #include "IconsFontAwesome.h"
-   ImGuiIO& io = ImGui::GetIO();
-   io.Fonts->AddFontDefault();
+  // Merge icons into default tool font
+  #include "IconsFontAwesome.h"
+  ImGuiIO& io = ImGui::GetIO();
+  io.Fonts->AddFontDefault();
 
-   ImFontConfig config;
-   config.MergeMode = true;
-   config.GlyphMinAdvanceX = 13.0f; // Use if you want to make the icon monospaced
-   static const ImWchar icon_ranges[] = { ICON_MIN_FA, ICON_MAX_FA, 0 };
-   io.Fonts->AddFontFromFileTTF("fonts/fontawesome-webfont.ttf", 13.0f, &config, icon_ranges);
+  ImFontConfig config;
+  config.MergeMode = true;
+  config.GlyphMinAdvanceX = 13.0f; // Use if you want to make the icon monospaced
+  static const ImWchar icon_ranges[] = { ICON_MIN_FA, ICON_MAX_FA, 0 };
+  io.Fonts->AddFontFromFileTTF("fonts/fontawesome-webfont.ttf", 13.0f, &config, icon_ranges);
 
-   // Usage, e.g.
-   ImGui::Button(ICON_FA_SEARCH " Search");                     // C string literals can be concatenated at compilation time, this is the same as "A" "B" becoming "AB"
-   ImGui::Text("%s among %d items", ICON_FA_SEARCH, count);
+Example Usage:
 
- See Links below for other icons fonts and related tools.
+  // Usage, e.g.
+  ImGui::Text("%s among %d items", ICON_FA_SEARCH, count);
+  ImGui::Button(ICON_FA_SEARCH " Search");
+  // C string _literals_ can be concatenated at compilation time, e.g. "hello" " world"
+  // ICON_FA_SEARCH is defined as a string literal so this is the same as "A" "B" becoming "AB" 
+   
+See Links below for other icons fonts and related tools.
 
 
 ---------------------------------------
  FONTS LOADING INSTRUCTIONS
 ---------------------------------------
 
- Load default font:
+Load default font:
 
-   ImGuiIO& io = ImGui::GetIO();
-   io.Fonts->AddFontDefault();
+  ImGuiIO& io = ImGui::GetIO();
+  io.Fonts->AddFontDefault();
 
- Load .TTF/.OTF file with:
+Load .TTF/.OTF file with:
 
-   ImGuiIO& io = ImGui::GetIO();
-   ImFont* font1 = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
-   ImFont* font2 = io.Fonts->AddFontFromFileTTF("anotherfont.otf", size_pixels);
+  ImGuiIO& io = ImGui::GetIO();
+  ImFont* font1 = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
+  ImFont* font2 = io.Fonts->AddFontFromFileTTF("anotherfont.otf", size_pixels);
   
-   // Select font at runtime
-   ImGui::Text("Hello");	// use the default font (which is the first loaded font)
-   ImGui::PushFont(font2);
-   ImGui::Text("Hello with another font");
-   ImGui::PopFont();
+  // Select font at runtime
+  ImGui::Text("Hello");	// use the default font (which is the first loaded font)
+  ImGui::PushFont(font2);
+  ImGui::Text("Hello with another font");
+  ImGui::PopFont();
 
- For advanced options create a ImFontConfig structure and pass it to the AddFont function (it will be copied internally):
+For advanced options create a ImFontConfig structure and pass it to the AddFont function (it will be copied internally):
 
-   ImFontConfig config;
-   config.OversampleH = 3;
-   config.OversampleV = 1;
-   config.GlyphExtraSpacing.x = 1.0f;
-   ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, &config);
+  ImFontConfig config;
+  config.OversampleH = 3;
+  config.OversampleV = 1;
+  config.GlyphExtraSpacing.x = 1.0f;
+  ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, &config);
 
- If you have very large number of glyphs or multiple fonts, the texture may become too big for your graphics API.
- The typical result of failing to upload a texture is if every glyphs appears as white rectangles.
- In particular, using a large range such as GetGlyphRangesChineseSimplifiedCommon() is not recommended unless you 
- set OversampleH/OversampleV to 1 and use a small font size.
- Mind the fact that some graphics drivers have texture size limitation.
- If you are building a PC application, mind the fact that your users may use hardware with lower limitations than yours.
- Some solutions:
+If you have very large number of glyphs or multiple fonts, the texture may become too big for your graphics API.
+The typical result of failing to upload a texture is if every glyphs appears as white rectangles.
+In particular, using a large range such as GetGlyphRangesChineseSimplifiedCommon() is not recommended unless you 
+set OversampleH/OversampleV to 1 and use a small font size.
+Mind the fact that some graphics drivers have texture size limitation.
+If you are building a PC application, mind the fact that your users may use hardware with lower limitations than yours.
+Some solutions:
 
-  - 1) Reduce glyphs ranges by calculating them from source localization data. You can use ImFont::GlyphRangesBuilder for this purpose,
-    this will be the biggest win. 
-  - 2) You may reduce oversampling, e.g. config.OversampleH = config.OversampleV = 1, this will largely reduce your texture size.
-  - 3) Set io.Fonts.TexDesiredWidth to specify a texture width to minimize texture height (see comment in ImFontAtlas::Build function).
-  - 4) Set io.Fonts.Flags |= ImFontAtlasFlags_NoPowerOfTwoHeight; to disable rounding the texture height to the next power of two.
+ - 1) Reduce glyphs ranges by calculating them from source localization data. You can use ImFont::GlyphRangesBuilder for this purpose,
+   this will be the biggest win. 
+ - 2) You may reduce oversampling, e.g. config.OversampleH = config.OversampleV = 1, this will largely reduce your texture size.
+ - 3) Set io.Fonts.TexDesiredWidth to specify a texture width to minimize texture height (see comment in ImFontAtlas::Build function).
+ - 4) Set io.Fonts.Flags |= ImFontAtlasFlags_NoPowerOfTwoHeight; to disable rounding the texture height to the next power of two.
 
- Combine two fonts into one:
+Combine two fonts into one:
 
-   // Load a first font
-   ImFont* font = io.Fonts->AddFontDefault();
+  // Load a first font
+  ImFont* font = io.Fonts->AddFontDefault();
 
-   // Add character ranges and merge into the previous font
-   // The ranges array is not copied by the AddFont* functions and is used lazily
-   // so ensure it is available for duration of font usage
-   static const ImWchar icons_ranges[] = { 0xf000, 0xf3ff, 0 }; // will not be copied by AddFont* so keep in scope.
-   ImFontConfig config;
-   config.MergeMode = true;
-   io.Fonts->AddFontFromFileTTF("DroidSans.ttf", 18.0f, &config, io.Fonts->GetGlyphRangesJapanese());
-   io.Fonts->AddFontFromFileTTF("fontawesome-webfont.ttf", 18.0f, &config, icons_ranges);
+  // Add character ranges and merge into the previous font
+  // The ranges array is not copied by the AddFont* functions and is used lazily
+  // so ensure it is available at the time of building or calling GetTexDataAsRGBA32().
+  static const ImWchar icons_ranges[] = { 0xf000, 0xf3ff, 0 }; // Will not be copied by AddFont* so keep in scope.
+  ImFontConfig config;
+  config.MergeMode = true;
+  io.Fonts->AddFontFromFileTTF("DroidSans.ttf", 18.0f, &config, io.Fonts->GetGlyphRangesJapanese());
+  io.Fonts->AddFontFromFileTTF("fontawesome-webfont.ttf", 18.0f, &config, icons_ranges);
+  io.Fonts->Build();
 
- Add a fourth parameter to bake specific font ranges only:
+Add a fourth parameter to bake specific font ranges only:
 
-   // Basic Latin, Extended Latin
-   io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesDefault());
+  // Basic Latin, Extended Latin
+  io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesDefault());
    
-   // Default + Selection of 2500 Ideographs used by Simplified Chinese
-   io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesChineseSimplifiedCommon());
+  // Default + Selection of 2500 Ideographs used by Simplified Chinese
+  io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesChineseSimplifiedCommon());
    
-   // Default + Hiragana, Katakana, Half-Width, Selection of 1946 Ideographs
-   io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesJapanese());
+  // Default + Hiragana, Katakana, Half-Width, Selection of 1946 Ideographs
+  io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, NULL, io.Fonts->GetGlyphRangesJapanese());
 
- See "BUILDING CUSTOM GLYPH RANGES" section to create your own ranges. 
- Offset font vertically by altering the io.Font->DisplayOffset value:
+See "BUILDING CUSTOM GLYPH RANGES" section to create your own ranges. 
+Offset font vertically by altering the io.Font->DisplayOffset value:
 
-   ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
-   font->DisplayOffset.y = 1;   // Render 1 pixel down
+  ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
+  font->DisplayOffset.y = 1;   // Render 1 pixel down
 
 
 ---------------------------------------
  FREETYPE RASTERIZER, SMALL FONT SIZES
 ---------------------------------------
 
- Dear Imgui uses stb_truetype.h to rasterize fonts (with optional oversampling).
- This technique and implementation are not ideal for fonts rendered at _small sizes_, which may appear a little blurry.
- There is an implementation of the ImFontAtlas builder using FreeType that you can use in the misc/freetype/ folder.
+Dear ImGui uses imstb_truetype.h to rasterize fonts (with optional oversampling).
+This technique and its implementation are not ideal for fonts rendered at _small sizes_, which may appear a 
+little blurry or hard to read. 
 
- FreeType supports auto-hinting which tends to improve the readability of small fonts.
- Note that this code currently creates textures that are unoptimally too large (could be fixed with some work)
+There is an implementation of the ImFontAtlas builder using FreeType that you can use in the misc/freetype/ folder.
+
+FreeType supports auto-hinting which tends to improve the readability of small fonts.
+Note that this code currently creates textures that are unoptimally too large (could be fixed with some work).
+Also note that correct sRGB space blending will have an important effect on your font rendering quality.
 
 
 ---------------------------------------
  BUILDING CUSTOM GLYPH RANGES
 ---------------------------------------
 
- You can use the ImFontAtlas::GlyphRangesBuilder helper to create glyph ranges based on text input.
- For example: for a game where your script is known, if you can feed your entire script to it and only build the characters the game needs. 
+You can use the ImFontAtlas::GlyphRangesBuilder helper to create glyph ranges based on text input.
+For example: for a game where your script is known, if you can feed your entire script to it and only build the characters the game needs. 
 
-   ImVector<ImWchar> ranges;
-   ImFontAtlas::GlyphRangesBuilder builder;
-   builder.AddText("Hello world");                        // Add a string (here "Hello world" contains 7 unique characters)
-   builder.AddChar(0x7262);                               // Add a specific character
-   builder.AddRanges(io.Fonts->GetGlyphRangesJapanese()); // Add one of the default ranges
-   builder.BuildRanges(&ranges);                          // Build the final result (ordered ranges with all the unique characters submitted)
-   io.Fonts->AddFontFromFileTTF("myfontfile.ttf", size_in_pixels, NULL, ranges.Data);
+  ImVector<ImWchar> ranges;
+  ImFontAtlas::GlyphRangesBuilder builder;
+  builder.AddText("Hello world");                        // Add a string (here "Hello world" contains 7 unique characters)
+  builder.AddChar(0x7262);                               // Add a specific character
+  builder.AddRanges(io.Fonts->GetGlyphRangesJapanese()); // Add one of the default ranges
+  builder.BuildRanges(&ranges);                          // Build the final result (ordered ranges with all the unique characters submitted)
+
+  io.Fonts->AddFontFromFileTTF("myfontfile.ttf", size_in_pixels, NULL, ranges.Data);
+  io.Fonts->Build();                                     // Build the atlas while 'ranges' is still in scope and not deleted.
 
 
 ---------------------------------------
  EMBEDDING FONTS IN SOURCE CODE
 ---------------------------------------
 
- Compile and use 'binary_to_compressed_c.cpp' to create a compressed C style array that you can embed in source code.
- See the documentation in binary_to_compressed_c.cpp for instruction on how to use the tool.
- You may find a precompiled version binary_to_compressed_c.exe for Windows instead of demo binaries package (see README).
- The tool optionally used Base85 encoding to reduce the size of _source code_ but the read-only arrays will be about 20% bigger. 
+Compile and use 'binary_to_compressed_c.cpp' to create a compressed C style array that you can embed in source code.
+See the documentation in binary_to_compressed_c.cpp for instruction on how to use the tool.
+You may find a precompiled version binary_to_compressed_c.exe for Windows instead of demo binaries package (see README).
+The tool optionally used Base85 encoding to reduce the size of _source code_ but the read-only arrays will be about 20% bigger. 
 
- Then load the font with:
-   ImFont* font = io.Fonts->AddFontFromMemoryCompressedTTF(compressed_data, compressed_data_size, size_pixels, ...);
- or: 
-   ImFont* font = io.Fonts->AddFontFromMemoryCompressedBase85TTF(compressed_data_base85, size_pixels, ...);
+Then load the font with:
+  ImFont* font = io.Fonts->AddFontFromMemoryCompressedTTF(compressed_data, compressed_data_size, size_pixels, ...);
+or: 
+  ImFont* font = io.Fonts->AddFontFromMemoryCompressedBase85TTF(compressed_data_base85, size_pixels, ...);
 
 
 ---------------------------------------
  CREDITS/LICENSES FOR FONTS INCLUDED IN THIS FOLDER
 ---------------------------------------
 
- Roboto-Medium.ttf
-   Apache License 2.0
-   by Christian Robertson
-   https://fonts.google.com/specimen/Roboto
+Roboto-Medium.ttf
 
- Cousine-Regular.ttf
-   by Steve Matteson
-   Digitized data copyright (c) 2010 Google Corporation.
-   Licensed under the SIL Open Font License, Version 1.1
-   https://fonts.google.com/specimen/Cousine 
+  Apache License 2.0
+  by Christian Robertson
+  https://fonts.google.com/specimen/Roboto
 
- DroidSans.ttf
-   Copyright (c) Steve Matteson
-   Apache License, version 2.0
-   https://www.fontsquirrel.com/fonts/droid-sans
+Cousine-Regular.ttf
 
- ProggyClean.ttf
-   Copyright (c) 2004, 2005 Tristan Grimmer
-   MIT License
-   recommended loading setting in ImGui: Size = 13.0, DisplayOffset.Y = +1
-   http://www.proggyfonts.net/
+  by Steve Matteson
+  Digitized data copyright (c) 2010 Google Corporation.
+  Licensed under the SIL Open Font License, Version 1.1
+  https://fonts.google.com/specimen/Cousine 
 
- ProggyTiny.ttf
-   Copyright (c) 2004, 2005 Tristan Grimmer
-   MIT License
-   recommended loading setting in ImGui: Size = 10.0, DisplayOffset.Y = +1
-   http://www.proggyfonts.net/
+DroidSans.ttf
 
- Karla-Regular.ttf
-   Copyright (c) 2012, Jonathan Pinhorn
-   SIL OPEN FONT LICENSE Version 1.1
+  Copyright (c) Steve Matteson
+  Apache License, version 2.0
+  https://www.fontsquirrel.com/fonts/droid-sans
+
+ProggyClean.ttf
+
+  Copyright (c) 2004, 2005 Tristan Grimmer
+  MIT License
+  recommended loading setting in ImGui: Size = 13.0, DisplayOffset.Y = +1
+  http://www.proggyfonts.net/
+
+ProggyTiny.ttf
+  Copyright (c) 2004, 2005 Tristan Grimmer
+  MIT License
+  recommended loading setting in ImGui: Size = 10.0, DisplayOffset.Y = +1
+  http://www.proggyfonts.net/
+
+Karla-Regular.ttf
+  Copyright (c) 2012, Jonathan Pinhorn
+  SIL OPEN FONT LICENSE Version 1.1
 
 
 ---------------------------------------
- LINKS, OTHER FONTS
+ FONTS LINKS
 ---------------------------------------
 
- (Icons) Icon fonts
-   https://fortawesome.github.io/Font-Awesome/
-   https://github.com/SamBrishes/kenney-icon-font
-   https://design.google.com/icons/
-   You can use https://github.com/juliettef/IconFontCppHeaders for C/C++ header files with name #define to access icon codepoint in source code.
+ICON FONTS
 
- (Icons) IcoMoon - Custom Icon font builder
-   https://icomoon.io/app
+  C/C++ header for icon fonts (#define with code points to use in source code string literals)
+  https://github.com/juliettef/IconFontCppHeaders
 
- (Regular) Open Sans Fonts
-   https://fonts.google.com/specimen/Open+Sans
+  FontAwesome
+  https://fortawesome.github.io/Font-Awesome
 
- (Regular) Google Noto Fonts (worldwide languages)
-   https://www.google.com/get/noto/
+  OpenFontIcons
+  https://github.com/traverseda/OpenFontIcons
 
- (Monospace) Typefaces for source code beautification
-   https://github.com/chrissimpkins/codeface
+  Google Icon Fonts
+  https://design.google.com/icons/
 
- (Monospace) Programmation fonts
-   http://s9w.github.io/font_compare/
+  Kenney Icon Font (Game Controller Icons)
+  https://github.com/nicodinh/kenney-icon-font
  
- (Monospace) Proggy Programming Fonts
-   http://upperbounds.net
+  IcoMoon - Custom Icon font builder
+  https://icomoon.io/app
 
- (Monospace) Inconsolata
-   http://www.levien.com/type/myfonts/inconsolata.html
+REGULAR FONTS
 
- (Monospace) Adobe Source Code Pro: Monospaced font family for user interface and coding environments
-   https://github.com/adobe-fonts/source-code-pro
+  Google Noto Fonts (worldwide languages)
+  https://www.google.com/get/noto/
 
- (Monospace) Monospace/Fixed Width Programmer's Fonts
-   http://www.lowing.org/fonts/
+  Open Sans Fonts
+  https://fonts.google.com/specimen/Open+Sans
+
+  (Japanese) M+ fonts by Coji Morishita are free
+  http://mplus-fonts.sourceforge.jp/mplus-outline-fonts/index-en.html
+
+MONOSPACE FONTS
+
+  (Pixel Perfect) Proggy Fonts, by Tristan Grimmer
+  http://www.proggyfonts.net or http://upperbounds.net
+
+  (Pixel Perfect) Sweet16, Sweet16 Mono, by Martin Sedlak (Latin + Supplemental + Extended A)
+  https://github.com/kmar/Sweet16Font
+  Also include .inl file to use directly in dear imgui.
+
+  Typefaces for source code beautification
+  https://github.com/chrissimpkins/codeface
+
+  Programmation fonts
+  http://s9w.github.io/font_compare/
+
+  Inconsolata
+  http://www.levien.com/type/myfonts/inconsolata.html
+
+  Adobe Source Code Pro: Monospaced font family for user interface and coding environments
+  https://github.com/adobe-fonts/source-code-pro
+
+  Monospace/Fixed Width Programmer's Fonts
+  http://www.lowing.org/fonts/
 
- (Japanese) M+ fonts by Coji Morishita are free and include most useful Kanjis you would need.
-   http://mplus-fonts.sourceforge.jp/mplus-outline-fonts/index-en.html
 
  Or use Arial Unicode or other Unicode fonts provided with Windows for full characters coverage (not sure of their licensing).
-

misc/freetype/imgui_freetype.cpp

@@ -337,7 +337,7 @@ bool ImGuiFreeType::BuildFontAtlas(ImFontAtlas* atlas, unsigned int extra_flags)
         {
             for (uint32_t codepoint = in_range[0]; codepoint <= in_range[1]; ++codepoint) 
             {
-                if (cfg.MergeMode && dst_font->FindGlyphNoFallback((unsigned short)codepoint))
+                if (cfg.MergeMode && dst_font->FindGlyphNoFallback((ImWchar)codepoint))
                     continue;
 
                 FT_Glyph ft_glyph = NULL;

misc/natvis/README.txt

@@ -1,3 +1,4 @@
 
-Natvis file to describe types in Visual Studio debugger. 
-You can include this in a project file, or install in Visual Studio folder.
+Natvis file to describe dear imgui types in the Visual Studio debugger. 
+With this, types like ImVector<> will be displayed nicely in the debugger. 
+You can include this file a Visual Studio project file, or install it in Visual Studio folder.